Ubuntu update for linux



Published: 2021-06-04
Risk High
Patch available YES
Number of vulnerabilities 13
CVE-ID CVE-2020-25670
CVE-2020-25671
CVE-2020-25672
CVE-2020-25673
CVE-2021-28660
CVE-2021-28964
CVE-2021-28971
CVE-2021-28972
CVE-2021-29647
CVE-2021-31916
CVE-2021-33033
CVE-2021-3428
CVE-2021-3483
CWE-ID CWE-416
CWE-401
CWE-400
CWE-787
CWE-362
CWE-119
CWE-200
CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

linux-image-gcp (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-gke (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-oem (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-oracle (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-virtual-hwe-16.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency-hwe-16.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-hwe-16.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-aws-hwe (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-raspi2 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1086-raspi2 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-virtual (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-snapdragon (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-oracle-lts-18.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-gcp-lts-18.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure-lts-18.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-aws-lts-18.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-144-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-144-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-144-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1115-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1103-snapdragon (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1103-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1100-gcp (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1092-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1072-oracle (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 13 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU63652

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25670

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the NFC LLCP protocol implementation. A local user can perform manipulation with an unknown input for the llcp_sock_bind() function to crash or escalate their privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU63653

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25671

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the NFC LLCP protocol implementation. A local user can trigger the llcp_sock_connect() function to crash or escalate their privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Memory leak

EUVDB-ID: #VU63654

Risk: High

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25672

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the NFC LLCP protocol implementation when triggering the llcp_sock_connect() function. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Resource exhaustion

EUVDB-ID: #VU63656

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25673

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper control consumption of internal resources in non-blocking socket in llcp_sock_connect() function. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Out-of-bounds write

EUVDB-ID: #VU56817

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28660

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the "rtw_wx_set_scan" in drivers/staging/rtl8188eu/os_dep/ioctl_linux.c. A local user can trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Race condition

EUVDB-ID: #VU63573

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28964

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service attack.

The vulnerability exists due to a race condition in the get_old_root() function in fs/btrfs/ctree.c component in the Linux kernel. A local user can exploit the race and perform a denial of service attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Resource exhaustion

EUVDB-ID: #VU64830

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28971

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to mishandling of PEBS status in a PEBS record In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Buffer overflow

EUVDB-ID: #VU56819

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28972

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the drivers/pci/hotplug/rpadlpar_sysfs.c. A local administrator can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Information disclosure

EUVDB-ID: #VU57040

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-29647

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to an error in qrtr_recvmsg(0 function in net/qrtr/qrtr.c caused by a partially uninitialized data structure. A local user can read sensitive information from kernel memory.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Out-of-bounds write

EUVDB-ID: #VU63574

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-31916

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module. A special user (CAP_SYS_ADMIN) can trigger a buffer overflow in the ioctl for listing devices and escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Use-after-free

EUVDB-ID: #VU55261

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33033

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper handling of the CIPSO and CALIPSO refcounting for the DOI definitions in cipso_v4_genopt(0 function in net/ipv4/cipso_ipv4.c in Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code with escalated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Integer overflow

EUVDB-ID: #VU51551

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3428

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in fs/ext4/extents.c in ext4_es_cache_extent() function, if an extent tree is corrupted in a crafted ext4 filesystem. A local user can mount a specially crafted filesystem and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Use-after-free

EUVDB-ID: #VU63659

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3483

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the Nosy driver in the Linux kernel. A local user can trigger use-after-free and to escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-gcp (Ubuntu package): before 5.4.0.1101.77

linux-image-gke (Ubuntu package): before 5.4.0.1095.100

linux-image-oem (Ubuntu package): before 5.4.0.144.142

linux-image-oracle (Ubuntu package): before 5.19.0.1018.15

linux-image-azure (Ubuntu package): before 5.19.0.1021.17

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.206.189

linux-image-aws-hwe (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-raspi2 (Ubuntu package): before 4.15.0.1086.83

linux-image-4.15.0-1086-raspi2 (Ubuntu package): before 4.15.0-1086.91

linux-image-virtual (Ubuntu package): before 4.15.0.144.131

linux-image-snapdragon (Ubuntu package): before 4.15.0.1103.106

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1072.82

linux-image-lowlatency (Ubuntu package): before 4.15.0.144.131

linux-image-kvm (Ubuntu package): before 4.15.0.1092.88

linux-image-generic-lpae (Ubuntu package): before 4.15.0.144.131

linux-image-generic (Ubuntu package): before 4.15.0.144.131

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1100.118

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1115.88

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1103.106

linux-image-4.15.0-144-lowlatency (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic-lpae (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-144-generic (Ubuntu package): before 4.15.0-144.148

linux-image-4.15.0-1115-azure (Ubuntu package): before 4.15.0-1115.128

linux-image-4.15.0-1103-snapdragon (Ubuntu package): before 4.15.0-1103.112

linux-image-4.15.0-1103-aws (Ubuntu package): before 4.15.0-1103.110

linux-image-4.15.0-1100-gcp (Ubuntu package): before 4.15.0-1100.113

linux-image-4.15.0-1092-kvm (Ubuntu package): before 4.15.0-1092.94

linux-image-4.15.0-1072-oracle (Ubuntu package): before 4.15.0-1072.80

External links

http://ubuntu.com/security/notices/USN-4979-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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