Ubuntu update for linux



Published: 2022-05-18 | Updated: 2022-10-19
Risk Medium
Patch available YES
Number of vulnerabilities 8
CVE-ID CVE-2020-27820
CVE-2021-26401
CVE-2022-1016
CVE-2022-20008
CVE-2022-25258
CVE-2022-25375
CVE-2022-26490
CVE-2022-27223
CWE-ID CWE-416
CWE-200
CWE-908
CWE-476
CWE-668
CWE-119
CWE-129
Exploitation vector Network
Public exploit Public exploit code for vulnerability #6 is available.
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

linux-image-5.4.0-1071-oracle (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-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-gke-5.4 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-oracle-lts-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.4.0-1073-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-raspi2 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-aws-lts-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-ibm-lts-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-gcp-lts-20.04 (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-5.4.0-1078-azure-fde (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.4.0-1040-gkeop (Ubuntu package)
Operating systems & Components / Operating system package or component

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

linux-image-gkeop-5.4 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure-lts-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.4.0-110-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.4.0-1078-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.4.0-110-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-oem-osp1 (Ubuntu package)
Operating systems & Components / Operating system package or component

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

linux-image-5.4.0-1021-ibm (Ubuntu package)
Operating systems & Components / Operating system package or component

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

linux-image-5.4.0-1071-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-5.4.0-110-generic (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-virtual (Ubuntu package)
Operating systems & Components / Operating system package or component

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

linux-image-5.4.0-1060-raspi (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.4.0-1073-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.4.0-1063-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

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

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

linux-image-snapdragon-hwe-18.04 (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-lowlatency-hwe-18.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-lpae-hwe-18.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

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

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU63322

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27820

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in nouveau's postclose() handler. 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: 18.04 - 20.04

linux-image-5.4.0-1071-oracle (Ubuntu package): before 5.4.0-1071.77~18.04.1

linux-image-generic-lpae (Ubuntu package): before 5.4.0.110.114

linux-image-kvm (Ubuntu package): before 5.4.0.1063.62

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1071.80

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1071.71

linux-image-5.4.0-1073-gcp (Ubuntu package): before 5.4.0-1073.78~18.04.1

linux-image-gke (Ubuntu package): before 5.4.0.1071.80

linux-image-raspi2 (Ubuntu package): before 5.4.0.1060.94

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1073.75

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1021.21

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1073.81

linux-image-lowlatency (Ubuntu package): before 5.4.0.110.114

linux-image-5.4.0-1078-azure-fde (Ubuntu package): before 5.4.0-1078.81+cvm1.1

linux-image-5.4.0-1040-gkeop (Ubuntu package): before 5.4.0-1040.41~18.04.1

linux-image-azure-fde (Ubuntu package): before 5.4.0.1078.81+cvm1.22

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1040.43

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1078.76

linux-image-5.4.0-110-generic-lpae (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-5.4.0-1078-azure (Ubuntu package): before 5.4.0-1078.81~18.04.1

linux-image-5.4.0-110-lowlatency (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-ibm (Ubuntu package): before 5.4.0.1021.38

linux-image-5.4.0-1021-ibm (Ubuntu package): before 5.4.0-1021.23~18.04.1

linux-image-raspi (Ubuntu package): before 5.4.0.1060.94

linux-image-5.4.0-1071-gke (Ubuntu package): before 5.4.0-1071.76

linux-image-oem (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-5.4.0-110-generic (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-generic (Ubuntu package): before 5.4.0.110.114

linux-image-virtual (Ubuntu package): before 5.4.0.110.114

linux-image-gkeop (Ubuntu package): before 5.4.0.1040.43

linux-image-5.4.0-1060-raspi (Ubuntu package): before 5.4.0-1060.68~18.04.1

linux-image-5.4.0-1073-aws (Ubuntu package): before 5.4.0-1073.78

linux-image-5.4.0-1063-kvm (Ubuntu package): before 5.4.0-1063.66

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1060.61

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-oracle (Ubuntu package): before 5.4.0.1071.77~18.04.50

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-gcp (Ubuntu package): before 5.4.0.1073.57

linux-image-azure (Ubuntu package): before 5.4.0.1078.57

External links

http://ubuntu.com/security/notices/USN-5415-1


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) Information disclosure

EUVDB-ID: #VU61566

Risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26401

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 excessive data output by the application within LFENCE/JMP. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-5.4.0-1071-oracle (Ubuntu package): before 5.4.0-1071.77~18.04.1

linux-image-generic-lpae (Ubuntu package): before 5.4.0.110.114

linux-image-kvm (Ubuntu package): before 5.4.0.1063.62

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1071.80

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1071.71

linux-image-5.4.0-1073-gcp (Ubuntu package): before 5.4.0-1073.78~18.04.1

linux-image-gke (Ubuntu package): before 5.4.0.1071.80

linux-image-raspi2 (Ubuntu package): before 5.4.0.1060.94

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1073.75

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1021.21

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1073.81

linux-image-lowlatency (Ubuntu package): before 5.4.0.110.114

linux-image-5.4.0-1078-azure-fde (Ubuntu package): before 5.4.0-1078.81+cvm1.1

linux-image-5.4.0-1040-gkeop (Ubuntu package): before 5.4.0-1040.41~18.04.1

linux-image-azure-fde (Ubuntu package): before 5.4.0.1078.81+cvm1.22

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1040.43

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1078.76

linux-image-5.4.0-110-generic-lpae (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-5.4.0-1078-azure (Ubuntu package): before 5.4.0-1078.81~18.04.1

linux-image-5.4.0-110-lowlatency (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-ibm (Ubuntu package): before 5.4.0.1021.38

linux-image-5.4.0-1021-ibm (Ubuntu package): before 5.4.0-1021.23~18.04.1

linux-image-raspi (Ubuntu package): before 5.4.0.1060.94

linux-image-5.4.0-1071-gke (Ubuntu package): before 5.4.0-1071.76

linux-image-oem (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-5.4.0-110-generic (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-generic (Ubuntu package): before 5.4.0.110.114

linux-image-virtual (Ubuntu package): before 5.4.0.110.114

linux-image-gkeop (Ubuntu package): before 5.4.0.1040.43

linux-image-5.4.0-1060-raspi (Ubuntu package): before 5.4.0-1060.68~18.04.1

linux-image-5.4.0-1073-aws (Ubuntu package): before 5.4.0-1073.78

linux-image-5.4.0-1063-kvm (Ubuntu package): before 5.4.0-1063.66

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1060.61

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-oracle (Ubuntu package): before 5.4.0.1071.77~18.04.50

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-gcp (Ubuntu package): before 5.4.0.1073.57

linux-image-azure (Ubuntu package): before 5.4.0.1078.57

External links

http://ubuntu.com/security/notices/USN-5415-1


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: #VU62028

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1016

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in net/netfilter/nf_tables_core.c:nft_do_chain in Linux kernel.. A local user can trigger a use-after-free error and gain access to sensitive information.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-5.4.0-1071-oracle (Ubuntu package): before 5.4.0-1071.77~18.04.1

linux-image-generic-lpae (Ubuntu package): before 5.4.0.110.114

linux-image-kvm (Ubuntu package): before 5.4.0.1063.62

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1071.80

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1071.71

linux-image-5.4.0-1073-gcp (Ubuntu package): before 5.4.0-1073.78~18.04.1

linux-image-gke (Ubuntu package): before 5.4.0.1071.80

linux-image-raspi2 (Ubuntu package): before 5.4.0.1060.94

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1073.75

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1021.21

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1073.81

linux-image-lowlatency (Ubuntu package): before 5.4.0.110.114

linux-image-5.4.0-1078-azure-fde (Ubuntu package): before 5.4.0-1078.81+cvm1.1

linux-image-5.4.0-1040-gkeop (Ubuntu package): before 5.4.0-1040.41~18.04.1

linux-image-azure-fde (Ubuntu package): before 5.4.0.1078.81+cvm1.22

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1040.43

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1078.76

linux-image-5.4.0-110-generic-lpae (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-5.4.0-1078-azure (Ubuntu package): before 5.4.0-1078.81~18.04.1

linux-image-5.4.0-110-lowlatency (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-ibm (Ubuntu package): before 5.4.0.1021.38

linux-image-5.4.0-1021-ibm (Ubuntu package): before 5.4.0-1021.23~18.04.1

linux-image-raspi (Ubuntu package): before 5.4.0.1060.94

linux-image-5.4.0-1071-gke (Ubuntu package): before 5.4.0-1071.76

linux-image-oem (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-5.4.0-110-generic (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-generic (Ubuntu package): before 5.4.0.110.114

linux-image-virtual (Ubuntu package): before 5.4.0.110.114

linux-image-gkeop (Ubuntu package): before 5.4.0.1040.43

linux-image-5.4.0-1060-raspi (Ubuntu package): before 5.4.0-1060.68~18.04.1

linux-image-5.4.0-1073-aws (Ubuntu package): before 5.4.0-1073.78

linux-image-5.4.0-1063-kvm (Ubuntu package): before 5.4.0-1063.66

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1060.61

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-oracle (Ubuntu package): before 5.4.0.1071.77~18.04.50

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-gcp (Ubuntu package): before 5.4.0.1073.57

linux-image-azure (Ubuntu package): before 5.4.0.1078.57

External links

http://ubuntu.com/security/notices/USN-5415-1


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) Use of uninitialized resource

EUVDB-ID: #VU63352

Risk: Low

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20008

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a local application to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources within the mmc_blk_read_single() function in block.c. A local application can obtain potentially sensitive information from memory when reading from an SD card that triggers errors.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-5.4.0-1071-oracle (Ubuntu package): before 5.4.0-1071.77~18.04.1

linux-image-generic-lpae (Ubuntu package): before 5.4.0.110.114

linux-image-kvm (Ubuntu package): before 5.4.0.1063.62

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1071.80

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1071.71

linux-image-5.4.0-1073-gcp (Ubuntu package): before 5.4.0-1073.78~18.04.1

linux-image-gke (Ubuntu package): before 5.4.0.1071.80

linux-image-raspi2 (Ubuntu package): before 5.4.0.1060.94

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1073.75

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1021.21

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1073.81

linux-image-lowlatency (Ubuntu package): before 5.4.0.110.114

linux-image-5.4.0-1078-azure-fde (Ubuntu package): before 5.4.0-1078.81+cvm1.1

linux-image-5.4.0-1040-gkeop (Ubuntu package): before 5.4.0-1040.41~18.04.1

linux-image-azure-fde (Ubuntu package): before 5.4.0.1078.81+cvm1.22

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1040.43

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1078.76

linux-image-5.4.0-110-generic-lpae (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-5.4.0-1078-azure (Ubuntu package): before 5.4.0-1078.81~18.04.1

linux-image-5.4.0-110-lowlatency (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-ibm (Ubuntu package): before 5.4.0.1021.38

linux-image-5.4.0-1021-ibm (Ubuntu package): before 5.4.0-1021.23~18.04.1

linux-image-raspi (Ubuntu package): before 5.4.0.1060.94

linux-image-5.4.0-1071-gke (Ubuntu package): before 5.4.0-1071.76

linux-image-oem (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-5.4.0-110-generic (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-generic (Ubuntu package): before 5.4.0.110.114

linux-image-virtual (Ubuntu package): before 5.4.0.110.114

linux-image-gkeop (Ubuntu package): before 5.4.0.1040.43

linux-image-5.4.0-1060-raspi (Ubuntu package): before 5.4.0-1060.68~18.04.1

linux-image-5.4.0-1073-aws (Ubuntu package): before 5.4.0-1073.78

linux-image-5.4.0-1063-kvm (Ubuntu package): before 5.4.0-1063.66

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1060.61

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-oracle (Ubuntu package): before 5.4.0.1071.77~18.04.50

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-gcp (Ubuntu package): before 5.4.0.1073.57

linux-image-azure (Ubuntu package): before 5.4.0.1078.57

External links

http://ubuntu.com/security/notices/USN-5415-1


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.

5) NULL pointer dereference

EUVDB-ID: #VU61270

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-2022-25258

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error drivers/usb/gadget/composite.c in the Linux kernel. The USB Gadget subsystem lacks certain validation of interface OS descriptor requests (ones with a large array index and ones associated with NULL function pointer retrieval). A local user can run a specially crafted program to trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-5.4.0-1071-oracle (Ubuntu package): before 5.4.0-1071.77~18.04.1

linux-image-generic-lpae (Ubuntu package): before 5.4.0.110.114

linux-image-kvm (Ubuntu package): before 5.4.0.1063.62

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1071.80

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1071.71

linux-image-5.4.0-1073-gcp (Ubuntu package): before 5.4.0-1073.78~18.04.1

linux-image-gke (Ubuntu package): before 5.4.0.1071.80

linux-image-raspi2 (Ubuntu package): before 5.4.0.1060.94

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1073.75

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1021.21

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1073.81

linux-image-lowlatency (Ubuntu package): before 5.4.0.110.114

linux-image-5.4.0-1078-azure-fde (Ubuntu package): before 5.4.0-1078.81+cvm1.1

linux-image-5.4.0-1040-gkeop (Ubuntu package): before 5.4.0-1040.41~18.04.1

linux-image-azure-fde (Ubuntu package): before 5.4.0.1078.81+cvm1.22

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1040.43

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1078.76

linux-image-5.4.0-110-generic-lpae (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-5.4.0-1078-azure (Ubuntu package): before 5.4.0-1078.81~18.04.1

linux-image-5.4.0-110-lowlatency (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-ibm (Ubuntu package): before 5.4.0.1021.38

linux-image-5.4.0-1021-ibm (Ubuntu package): before 5.4.0-1021.23~18.04.1

linux-image-raspi (Ubuntu package): before 5.4.0.1060.94

linux-image-5.4.0-1071-gke (Ubuntu package): before 5.4.0-1071.76

linux-image-oem (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-5.4.0-110-generic (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-generic (Ubuntu package): before 5.4.0.110.114

linux-image-virtual (Ubuntu package): before 5.4.0.110.114

linux-image-gkeop (Ubuntu package): before 5.4.0.1040.43

linux-image-5.4.0-1060-raspi (Ubuntu package): before 5.4.0-1060.68~18.04.1

linux-image-5.4.0-1073-aws (Ubuntu package): before 5.4.0-1073.78

linux-image-5.4.0-1063-kvm (Ubuntu package): before 5.4.0-1063.66

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1060.61

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-oracle (Ubuntu package): before 5.4.0.1071.77~18.04.50

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-gcp (Ubuntu package): before 5.4.0.1073.57

linux-image-azure (Ubuntu package): before 5.4.0.1078.57

External links

http://ubuntu.com/security/notices/USN-5415-1


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) Exposure of Resource to Wrong Sphere

EUVDB-ID: #VU61269

Risk: Low

CVSSv3.1: 3.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-25375

CWE-ID: CWE-668 - Exposure of resource to wrong sphere

Exploit availability: Yes

Description

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

The vulnerability exists due to improper access restrictions in drivers/usb/gadget/function/rndis.c in the Linux kernel. The RNDIS USB gadget lacks validation of the size of the RNDIS_MSG_SET command. A local user can run a specially crafted program to gain access to kernel memory.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-5.4.0-1071-oracle (Ubuntu package): before 5.4.0-1071.77~18.04.1

linux-image-generic-lpae (Ubuntu package): before 5.4.0.110.114

linux-image-kvm (Ubuntu package): before 5.4.0.1063.62

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1071.80

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1071.71

linux-image-5.4.0-1073-gcp (Ubuntu package): before 5.4.0-1073.78~18.04.1

linux-image-gke (Ubuntu package): before 5.4.0.1071.80

linux-image-raspi2 (Ubuntu package): before 5.4.0.1060.94

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1073.75

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1021.21

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1073.81

linux-image-lowlatency (Ubuntu package): before 5.4.0.110.114

linux-image-5.4.0-1078-azure-fde (Ubuntu package): before 5.4.0-1078.81+cvm1.1

linux-image-5.4.0-1040-gkeop (Ubuntu package): before 5.4.0-1040.41~18.04.1

linux-image-azure-fde (Ubuntu package): before 5.4.0.1078.81+cvm1.22

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1040.43

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1078.76

linux-image-5.4.0-110-generic-lpae (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-5.4.0-1078-azure (Ubuntu package): before 5.4.0-1078.81~18.04.1

linux-image-5.4.0-110-lowlatency (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-ibm (Ubuntu package): before 5.4.0.1021.38

linux-image-5.4.0-1021-ibm (Ubuntu package): before 5.4.0-1021.23~18.04.1

linux-image-raspi (Ubuntu package): before 5.4.0.1060.94

linux-image-5.4.0-1071-gke (Ubuntu package): before 5.4.0-1071.76

linux-image-oem (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-5.4.0-110-generic (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-generic (Ubuntu package): before 5.4.0.110.114

linux-image-virtual (Ubuntu package): before 5.4.0.110.114

linux-image-gkeop (Ubuntu package): before 5.4.0.1040.43

linux-image-5.4.0-1060-raspi (Ubuntu package): before 5.4.0-1060.68~18.04.1

linux-image-5.4.0-1073-aws (Ubuntu package): before 5.4.0-1073.78

linux-image-5.4.0-1063-kvm (Ubuntu package): before 5.4.0-1063.66

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1060.61

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-oracle (Ubuntu package): before 5.4.0.1071.77~18.04.50

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-gcp (Ubuntu package): before 5.4.0.1073.57

linux-image-azure (Ubuntu package): before 5.4.0.1078.57

External links

http://ubuntu.com/security/notices/USN-5415-1


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. However, proof of concept for this vulnerability is available.

7) Buffer overflow

EUVDB-ID: #VU62601

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-2022-26490

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the st21nfca_connectivity_event_received() function in drivers/nfc/st21nfca/se.c in Linux kernel. A local user can run a specially crafted program to trigger buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-5.4.0-1071-oracle (Ubuntu package): before 5.4.0-1071.77~18.04.1

linux-image-generic-lpae (Ubuntu package): before 5.4.0.110.114

linux-image-kvm (Ubuntu package): before 5.4.0.1063.62

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1071.80

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1071.71

linux-image-5.4.0-1073-gcp (Ubuntu package): before 5.4.0-1073.78~18.04.1

linux-image-gke (Ubuntu package): before 5.4.0.1071.80

linux-image-raspi2 (Ubuntu package): before 5.4.0.1060.94

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1073.75

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1021.21

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1073.81

linux-image-lowlatency (Ubuntu package): before 5.4.0.110.114

linux-image-5.4.0-1078-azure-fde (Ubuntu package): before 5.4.0-1078.81+cvm1.1

linux-image-5.4.0-1040-gkeop (Ubuntu package): before 5.4.0-1040.41~18.04.1

linux-image-azure-fde (Ubuntu package): before 5.4.0.1078.81+cvm1.22

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1040.43

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1078.76

linux-image-5.4.0-110-generic-lpae (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-5.4.0-1078-azure (Ubuntu package): before 5.4.0-1078.81~18.04.1

linux-image-5.4.0-110-lowlatency (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-ibm (Ubuntu package): before 5.4.0.1021.38

linux-image-5.4.0-1021-ibm (Ubuntu package): before 5.4.0-1021.23~18.04.1

linux-image-raspi (Ubuntu package): before 5.4.0.1060.94

linux-image-5.4.0-1071-gke (Ubuntu package): before 5.4.0-1071.76

linux-image-oem (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-5.4.0-110-generic (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-generic (Ubuntu package): before 5.4.0.110.114

linux-image-virtual (Ubuntu package): before 5.4.0.110.114

linux-image-gkeop (Ubuntu package): before 5.4.0.1040.43

linux-image-5.4.0-1060-raspi (Ubuntu package): before 5.4.0-1060.68~18.04.1

linux-image-5.4.0-1073-aws (Ubuntu package): before 5.4.0-1073.78

linux-image-5.4.0-1063-kvm (Ubuntu package): before 5.4.0-1063.66

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1060.61

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-oracle (Ubuntu package): before 5.4.0.1071.77~18.04.50

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-gcp (Ubuntu package): before 5.4.0.1073.57

linux-image-azure (Ubuntu package): before 5.4.0.1078.57

External links

http://ubuntu.com/security/notices/USN-5415-1


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) Improper Validation of Array Index

EUVDB-ID: #VU63316

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-27223

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code with elevated privileges.

The vulnerability exists due to improper validation of array index in drivers/usb/gadget/udc/udc-xilinx.c in the Linux kernel. A remote attacker 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: 18.04 - 20.04

linux-image-5.4.0-1071-oracle (Ubuntu package): before 5.4.0-1071.77~18.04.1

linux-image-generic-lpae (Ubuntu package): before 5.4.0.110.114

linux-image-kvm (Ubuntu package): before 5.4.0.1063.62

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1071.80

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1071.71

linux-image-5.4.0-1073-gcp (Ubuntu package): before 5.4.0-1073.78~18.04.1

linux-image-gke (Ubuntu package): before 5.4.0.1071.80

linux-image-raspi2 (Ubuntu package): before 5.4.0.1060.94

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1073.75

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1021.21

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1073.81

linux-image-lowlatency (Ubuntu package): before 5.4.0.110.114

linux-image-5.4.0-1078-azure-fde (Ubuntu package): before 5.4.0-1078.81+cvm1.1

linux-image-5.4.0-1040-gkeop (Ubuntu package): before 5.4.0-1040.41~18.04.1

linux-image-azure-fde (Ubuntu package): before 5.4.0.1078.81+cvm1.22

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1040.43

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1078.76

linux-image-5.4.0-110-generic-lpae (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-5.4.0-1078-azure (Ubuntu package): before 5.4.0-1078.81~18.04.1

linux-image-5.4.0-110-lowlatency (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-ibm (Ubuntu package): before 5.4.0.1021.38

linux-image-5.4.0-1021-ibm (Ubuntu package): before 5.4.0-1021.23~18.04.1

linux-image-raspi (Ubuntu package): before 5.4.0.1060.94

linux-image-5.4.0-1071-gke (Ubuntu package): before 5.4.0-1071.76

linux-image-oem (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-5.4.0-110-generic (Ubuntu package): before 5.4.0-110.124~18.04.1

linux-image-generic (Ubuntu package): before 5.4.0.110.114

linux-image-virtual (Ubuntu package): before 5.4.0.110.114

linux-image-gkeop (Ubuntu package): before 5.4.0.1040.43

linux-image-5.4.0-1060-raspi (Ubuntu package): before 5.4.0-1060.68~18.04.1

linux-image-5.4.0-1073-aws (Ubuntu package): before 5.4.0-1073.78

linux-image-5.4.0-1063-kvm (Ubuntu package): before 5.4.0-1063.66

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1060.61

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-oracle (Ubuntu package): before 5.4.0.1071.77~18.04.50

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.110.124~18.04.95

linux-image-gcp (Ubuntu package): before 5.4.0.1073.57

linux-image-azure (Ubuntu package): before 5.4.0.1078.57

External links

http://ubuntu.com/security/notices/USN-5415-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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