Ubuntu update for linux



Published: 2022-01-06
Risk Low
Patch available YES
Number of vulnerabilities 6
CVE-ID CVE-2021-20317
CVE-2021-20321
CVE-2021-3760
CVE-2021-4002
CVE-2021-41864
CVE-2021-43389
CWE-ID CWE-665
CWE-362
CWE-416
CWE-401
CWE-787
CWE-129
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

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

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

linux-image-4.15.0-1129-azure (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-raspi2 (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-dell300x (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-4.15.0-166-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-166-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-166-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1118-snapdragon (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1118-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1114-gcp (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1105-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1101-raspi2 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1085-oracle (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-4.15.0-1033-dell300x (Ubuntu package)
Operating systems & Components / Operating system package or component

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

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 6 vulnerabilities.

1) Improper Initialization

EUVDB-ID: #VU58208

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-2021-20317

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

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

The vulnerability exists due to improper initialization the Linux kernel. A corrupted timer tree causes the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. A local user can run a specially crafted application to crash the kernel.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-oracle (Ubuntu package): before 5.11.0.1022.23~20.04.15

linux-image-gcp (Ubuntu package): before 5.11.0.1023.25~20.04.22

linux-image-gke (Ubuntu package): before 5.11.0.1023.23

linux-image-azure (Ubuntu package): before 5.11.0.1022.23~20.04.22

linux-image-oem (Ubuntu package): before 5.4.0.91.95

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1129.102

linux-image-4.15.0-1129-azure (Ubuntu package): before 4.15.0-1129.142

linux-image-virtual (Ubuntu package): before 4.15.0.166.155

linux-image-snapdragon (Ubuntu package): before 4.15.0.1118.121

linux-image-raspi2 (Ubuntu package): before 4.15.0.1101.99

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1085.95

linux-image-lowlatency (Ubuntu package): before 4.15.0.166.155

linux-image-kvm (Ubuntu package): before 4.15.0.1105.101

linux-image-generic-lpae (Ubuntu package): before 4.15.0.166.155

linux-image-generic (Ubuntu package): before 4.15.0.166.155

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1114.133

linux-image-dell300x (Ubuntu package): before 4.15.0.1033.35

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1118.121

linux-image-4.15.0-166-lowlatency (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic-lpae (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-1118-snapdragon (Ubuntu package): before 4.15.0-1118.127

linux-image-4.15.0-1118-aws (Ubuntu package): before 4.15.0-1118.125

linux-image-4.15.0-1114-gcp (Ubuntu package): before 4.15.0-1114.128

linux-image-4.15.0-1105-kvm (Ubuntu package): before 4.15.0-1105.107

linux-image-4.15.0-1101-raspi2 (Ubuntu package): before 4.15.0-1101.108

linux-image-4.15.0-1085-oracle (Ubuntu package): before 4.15.0-1085.93

linux-image-4.15.0-1033-dell300x (Ubuntu package): before 4.15.0-1033.38

linux-image-aws-hwe (Ubuntu package): before 4.15.0.1099.92

External links

http://ubuntu.com/security/notices/USN-5209-1


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) Race condition

EUVDB-ID: #VU59084

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-2021-20321

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 (DoS) attacks.

The vulnerability exists due to a race condition when accessing file object in the Linux kernel OverlayFS subsystem. A local user can rename files in specific way with OverlayFS 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-oracle (Ubuntu package): before 5.11.0.1022.23~20.04.15

linux-image-gcp (Ubuntu package): before 5.11.0.1023.25~20.04.22

linux-image-gke (Ubuntu package): before 5.11.0.1023.23

linux-image-azure (Ubuntu package): before 5.11.0.1022.23~20.04.22

linux-image-oem (Ubuntu package): before 5.4.0.91.95

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1129.102

linux-image-4.15.0-1129-azure (Ubuntu package): before 4.15.0-1129.142

linux-image-virtual (Ubuntu package): before 4.15.0.166.155

linux-image-snapdragon (Ubuntu package): before 4.15.0.1118.121

linux-image-raspi2 (Ubuntu package): before 4.15.0.1101.99

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1085.95

linux-image-lowlatency (Ubuntu package): before 4.15.0.166.155

linux-image-kvm (Ubuntu package): before 4.15.0.1105.101

linux-image-generic-lpae (Ubuntu package): before 4.15.0.166.155

linux-image-generic (Ubuntu package): before 4.15.0.166.155

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1114.133

linux-image-dell300x (Ubuntu package): before 4.15.0.1033.35

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1118.121

linux-image-4.15.0-166-lowlatency (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic-lpae (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-1118-snapdragon (Ubuntu package): before 4.15.0-1118.127

linux-image-4.15.0-1118-aws (Ubuntu package): before 4.15.0-1118.125

linux-image-4.15.0-1114-gcp (Ubuntu package): before 4.15.0-1114.128

linux-image-4.15.0-1105-kvm (Ubuntu package): before 4.15.0-1105.107

linux-image-4.15.0-1101-raspi2 (Ubuntu package): before 4.15.0-1101.108

linux-image-4.15.0-1085-oracle (Ubuntu package): before 4.15.0-1085.93

linux-image-4.15.0-1033-dell300x (Ubuntu package): before 4.15.0-1033.38

linux-image-aws-hwe (Ubuntu package): before 4.15.0.1099.92

External links

http://ubuntu.com/security/notices/USN-5209-1


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) Use-after-free

EUVDB-ID: #VU63816

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-2021-3760

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 stack. A local user can trigger use-after-free error 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-oracle (Ubuntu package): before 5.11.0.1022.23~20.04.15

linux-image-gcp (Ubuntu package): before 5.11.0.1023.25~20.04.22

linux-image-gke (Ubuntu package): before 5.11.0.1023.23

linux-image-azure (Ubuntu package): before 5.11.0.1022.23~20.04.22

linux-image-oem (Ubuntu package): before 5.4.0.91.95

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1129.102

linux-image-4.15.0-1129-azure (Ubuntu package): before 4.15.0-1129.142

linux-image-virtual (Ubuntu package): before 4.15.0.166.155

linux-image-snapdragon (Ubuntu package): before 4.15.0.1118.121

linux-image-raspi2 (Ubuntu package): before 4.15.0.1101.99

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1085.95

linux-image-lowlatency (Ubuntu package): before 4.15.0.166.155

linux-image-kvm (Ubuntu package): before 4.15.0.1105.101

linux-image-generic-lpae (Ubuntu package): before 4.15.0.166.155

linux-image-generic (Ubuntu package): before 4.15.0.166.155

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1114.133

linux-image-dell300x (Ubuntu package): before 4.15.0.1033.35

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1118.121

linux-image-4.15.0-166-lowlatency (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic-lpae (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-1118-snapdragon (Ubuntu package): before 4.15.0-1118.127

linux-image-4.15.0-1118-aws (Ubuntu package): before 4.15.0-1118.125

linux-image-4.15.0-1114-gcp (Ubuntu package): before 4.15.0-1114.128

linux-image-4.15.0-1105-kvm (Ubuntu package): before 4.15.0-1105.107

linux-image-4.15.0-1101-raspi2 (Ubuntu package): before 4.15.0-1101.108

linux-image-4.15.0-1085-oracle (Ubuntu package): before 4.15.0-1085.93

linux-image-4.15.0-1033-dell300x (Ubuntu package): before 4.15.0-1033.38

linux-image-aws-hwe (Ubuntu package): before 4.15.0.1099.92

External links

http://ubuntu.com/security/notices/USN-5209-1


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.

4) Memory leak

EUVDB-ID: #VU63836

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4002

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

Exploit availability: No

Description

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

The vulnerability exists due memory leak in the Linux kernel's hugetlbfs memory usage. A local user can force the application to leak memory and gain access to sensitive information.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-oracle (Ubuntu package): before 5.11.0.1022.23~20.04.15

linux-image-gcp (Ubuntu package): before 5.11.0.1023.25~20.04.22

linux-image-gke (Ubuntu package): before 5.11.0.1023.23

linux-image-azure (Ubuntu package): before 5.11.0.1022.23~20.04.22

linux-image-oem (Ubuntu package): before 5.4.0.91.95

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1129.102

linux-image-4.15.0-1129-azure (Ubuntu package): before 4.15.0-1129.142

linux-image-virtual (Ubuntu package): before 4.15.0.166.155

linux-image-snapdragon (Ubuntu package): before 4.15.0.1118.121

linux-image-raspi2 (Ubuntu package): before 4.15.0.1101.99

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1085.95

linux-image-lowlatency (Ubuntu package): before 4.15.0.166.155

linux-image-kvm (Ubuntu package): before 4.15.0.1105.101

linux-image-generic-lpae (Ubuntu package): before 4.15.0.166.155

linux-image-generic (Ubuntu package): before 4.15.0.166.155

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1114.133

linux-image-dell300x (Ubuntu package): before 4.15.0.1033.35

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1118.121

linux-image-4.15.0-166-lowlatency (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic-lpae (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-1118-snapdragon (Ubuntu package): before 4.15.0-1118.127

linux-image-4.15.0-1118-aws (Ubuntu package): before 4.15.0-1118.125

linux-image-4.15.0-1114-gcp (Ubuntu package): before 4.15.0-1114.128

linux-image-4.15.0-1105-kvm (Ubuntu package): before 4.15.0-1105.107

linux-image-4.15.0-1101-raspi2 (Ubuntu package): before 4.15.0-1101.108

linux-image-4.15.0-1085-oracle (Ubuntu package): before 4.15.0-1085.93

linux-image-4.15.0-1033-dell300x (Ubuntu package): before 4.15.0-1033.38

linux-image-aws-hwe (Ubuntu package): before 4.15.0.1099.92

External links

http://ubuntu.com/security/notices/USN-5209-1


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: #VU63855

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-2021-41864

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 when processing untrusted input. A local user can gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-oracle (Ubuntu package): before 5.11.0.1022.23~20.04.15

linux-image-gcp (Ubuntu package): before 5.11.0.1023.25~20.04.22

linux-image-gke (Ubuntu package): before 5.11.0.1023.23

linux-image-azure (Ubuntu package): before 5.11.0.1022.23~20.04.22

linux-image-oem (Ubuntu package): before 5.4.0.91.95

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1129.102

linux-image-4.15.0-1129-azure (Ubuntu package): before 4.15.0-1129.142

linux-image-virtual (Ubuntu package): before 4.15.0.166.155

linux-image-snapdragon (Ubuntu package): before 4.15.0.1118.121

linux-image-raspi2 (Ubuntu package): before 4.15.0.1101.99

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1085.95

linux-image-lowlatency (Ubuntu package): before 4.15.0.166.155

linux-image-kvm (Ubuntu package): before 4.15.0.1105.101

linux-image-generic-lpae (Ubuntu package): before 4.15.0.166.155

linux-image-generic (Ubuntu package): before 4.15.0.166.155

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1114.133

linux-image-dell300x (Ubuntu package): before 4.15.0.1033.35

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1118.121

linux-image-4.15.0-166-lowlatency (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic-lpae (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-1118-snapdragon (Ubuntu package): before 4.15.0-1118.127

linux-image-4.15.0-1118-aws (Ubuntu package): before 4.15.0-1118.125

linux-image-4.15.0-1114-gcp (Ubuntu package): before 4.15.0-1114.128

linux-image-4.15.0-1105-kvm (Ubuntu package): before 4.15.0-1105.107

linux-image-4.15.0-1101-raspi2 (Ubuntu package): before 4.15.0-1101.108

linux-image-4.15.0-1085-oracle (Ubuntu package): before 4.15.0-1085.93

linux-image-4.15.0-1033-dell300x (Ubuntu package): before 4.15.0-1033.38

linux-image-aws-hwe (Ubuntu package): before 4.15.0.1099.92

External links

http://ubuntu.com/security/notices/USN-5209-1


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) Improper Validation of Array Index

EUVDB-ID: #VU63385

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-2021-43389

CWE-ID: CWE-129 - Improper Validation of Array Index

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges.

The vulnerability exists due to improper validation of array index in the ISDN CAPI implementation within detach_capi_ctr() function in drivers/isdn/capi/kcapi.c. A local user can send specially crafted data to the system and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-oracle (Ubuntu package): before 5.11.0.1022.23~20.04.15

linux-image-gcp (Ubuntu package): before 5.11.0.1023.25~20.04.22

linux-image-gke (Ubuntu package): before 5.11.0.1023.23

linux-image-azure (Ubuntu package): before 5.11.0.1022.23~20.04.22

linux-image-oem (Ubuntu package): before 5.4.0.91.95

linux-image-virtual-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-generic-hwe-16.04 (Ubuntu package): before 4.15.0.187.173

linux-image-azure-lts-18.04 (Ubuntu package): before 4.15.0.1129.102

linux-image-4.15.0-1129-azure (Ubuntu package): before 4.15.0-1129.142

linux-image-virtual (Ubuntu package): before 4.15.0.166.155

linux-image-snapdragon (Ubuntu package): before 4.15.0.1118.121

linux-image-raspi2 (Ubuntu package): before 4.15.0.1101.99

linux-image-oracle-lts-18.04 (Ubuntu package): before 4.15.0.1085.95

linux-image-lowlatency (Ubuntu package): before 4.15.0.166.155

linux-image-kvm (Ubuntu package): before 4.15.0.1105.101

linux-image-generic-lpae (Ubuntu package): before 4.15.0.166.155

linux-image-generic (Ubuntu package): before 4.15.0.166.155

linux-image-gcp-lts-18.04 (Ubuntu package): before 4.15.0.1114.133

linux-image-dell300x (Ubuntu package): before 4.15.0.1033.35

linux-image-aws-lts-18.04 (Ubuntu package): before 4.15.0.1118.121

linux-image-4.15.0-166-lowlatency (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic-lpae (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-166-generic (Ubuntu package): before 4.15.0-166.174

linux-image-4.15.0-1118-snapdragon (Ubuntu package): before 4.15.0-1118.127

linux-image-4.15.0-1118-aws (Ubuntu package): before 4.15.0-1118.125

linux-image-4.15.0-1114-gcp (Ubuntu package): before 4.15.0-1114.128

linux-image-4.15.0-1105-kvm (Ubuntu package): before 4.15.0-1105.107

linux-image-4.15.0-1101-raspi2 (Ubuntu package): before 4.15.0-1101.108

linux-image-4.15.0-1085-oracle (Ubuntu package): before 4.15.0-1085.93

linux-image-4.15.0-1033-dell300x (Ubuntu package): before 4.15.0-1033.38

linux-image-aws-hwe (Ubuntu package): before 4.15.0.1099.92

External links

http://ubuntu.com/security/notices/USN-5209-1


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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