Ubuntu update for linux-gcp-5.15

Published: 2022-11-18

Risk	Low
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2022-20422 CVE-2022-2905 CVE-2022-2978 CVE-2022-3028 CVE-2022-3625 CVE-2022-3635 CVE-2022-39190 CVE-2022-40768
CWE-ID	CWE-787 CWE-125 CWE-416 CWE-362 CWE-284
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Ubuntu Operating systems & Components / Operating system linux-image-gke-5.15 (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-5.15.0-1022-gcp (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.15.0-1020-gke (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.15.0-1018-raspi (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-5.15.0-1018-intel-iotg (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-raspi-nolpae (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-intel-iotg (Ubuntu package) /
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU67866

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-2022-20422

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within emulation_proc_handler() in armv8 emulation in arch/arm64/kernel/armv8_deprecated.c. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-gcp-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1020.25~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1022.29~20.04.1

linux-image-5.15.0-1022-gcp (Ubuntu package): before 5.15.0-1022.29~20.04.1

linux-image-5.15.0-1020-gke (Ubuntu package): before 5.15.0-1020.25~20.04.1

linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package): before 5.15.0-1018.20

linux-image-5.15.0-1018-raspi (Ubuntu package): before 5.15.0-1018.20

linux-image-raspi (Ubuntu package): before 5.15.0.1018.17

linux-image-5.15.0-1018-intel-iotg (Ubuntu package): before 5.15.0-1018.23

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1018.17

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1018.19

External links

http://ubuntu.com/security/notices/USN-5729-2

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) Out-of-bounds read

EUVDB-ID: #VU67509

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-2022-2905

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in the Linux kernel BPF subsystem. A local user can call the bpf_tail_call() function with a key larger than the max_entries of the map, trigger an out-of-bounds read and read parts of kernel memory.

Mitigation

Update the affected package linux-gcp-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1020.25~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1022.29~20.04.1

linux-image-5.15.0-1022-gcp (Ubuntu package): before 5.15.0-1022.29~20.04.1

linux-image-5.15.0-1020-gke (Ubuntu package): before 5.15.0-1020.25~20.04.1

linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package): before 5.15.0-1018.20

linux-image-5.15.0-1018-raspi (Ubuntu package): before 5.15.0-1018.20

linux-image-raspi (Ubuntu package): before 5.15.0.1018.17

linux-image-5.15.0-1018-intel-iotg (Ubuntu package): before 5.15.0-1018.23

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1018.17

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1018.19

External links

http://ubuntu.com/security/notices/USN-5729-2

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: #VU67812

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-2022-2978

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 within the Linux kernel NILFS file system. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-gcp-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1020.25~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1022.29~20.04.1

linux-image-5.15.0-1022-gcp (Ubuntu package): before 5.15.0-1022.29~20.04.1

linux-image-5.15.0-1020-gke (Ubuntu package): before 5.15.0-1020.25~20.04.1

linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package): before 5.15.0-1018.20

linux-image-5.15.0-1018-raspi (Ubuntu package): before 5.15.0-1018.20

linux-image-raspi (Ubuntu package): before 5.15.0.1018.17

linux-image-5.15.0-1018-intel-iotg (Ubuntu package): before 5.15.0-1018.23

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1018.17

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1018.19

External links

http://ubuntu.com/security/notices/USN-5729-2

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) Race condition

EUVDB-ID: #VU67477

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-2022-3028

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 escalate privileges on the system.

The vulnerability exists due to a race condition in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. A local user can exploit the race and escalate privileges on the system.

Mitigation

Update the affected package linux-gcp-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1020.25~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1022.29~20.04.1

linux-image-5.15.0-1022-gcp (Ubuntu package): before 5.15.0-1022.29~20.04.1

linux-image-5.15.0-1020-gke (Ubuntu package): before 5.15.0-1020.25~20.04.1

linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package): before 5.15.0-1018.20

linux-image-5.15.0-1018-raspi (Ubuntu package): before 5.15.0-1018.20

linux-image-raspi (Ubuntu package): before 5.15.0.1018.17

linux-image-5.15.0-1018-intel-iotg (Ubuntu package): before 5.15.0-1018.23

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1018.17

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1018.19

External links

http://ubuntu.com/security/notices/USN-5729-2

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) Use-after-free

EUVDB-ID: #VU69397

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-2022-3625

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 within the devlink_param_set() and devlink_param_get() function in net/core/devlink.c in IPsec component of Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-gcp-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1020.25~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1022.29~20.04.1

linux-image-5.15.0-1022-gcp (Ubuntu package): before 5.15.0-1022.29~20.04.1

linux-image-5.15.0-1020-gke (Ubuntu package): before 5.15.0-1020.25~20.04.1

linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package): before 5.15.0-1018.20

linux-image-5.15.0-1018-raspi (Ubuntu package): before 5.15.0-1018.20

linux-image-raspi (Ubuntu package): before 5.15.0.1018.17

linux-image-5.15.0-1018-intel-iotg (Ubuntu package): before 5.15.0-1018.23

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1018.17

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1018.19

External links

http://ubuntu.com/security/notices/USN-5729-2

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) Use-after-free

EUVDB-ID: #VU69398

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-2022-3635

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the drivers/atm/idt77252.c in IPsec component of Linux kernel. A local user can trigger a use-after-free error and crash the kernel.

Mitigation

Update the affected package linux-gcp-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1020.25~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1022.29~20.04.1

linux-image-5.15.0-1022-gcp (Ubuntu package): before 5.15.0-1022.29~20.04.1

linux-image-5.15.0-1020-gke (Ubuntu package): before 5.15.0-1020.25~20.04.1

linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package): before 5.15.0-1018.20

linux-image-5.15.0-1018-raspi (Ubuntu package): before 5.15.0-1018.20

linux-image-raspi (Ubuntu package): before 5.15.0.1018.17

linux-image-5.15.0-1018-intel-iotg (Ubuntu package): before 5.15.0-1018.23

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1018.17

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1018.19

External links

http://ubuntu.com/security/notices/USN-5729-2

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) Out-of-bounds read

EUVDB-ID: #VU67508

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-2022-39190

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to an out-of-bounds read error within the net/netfilter/nf_tables_api.c in the Linux kernel. A local user can bind to an already bound chain and crash the kernel.

Mitigation

Update the affected package linux-gcp-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1020.25~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1022.29~20.04.1

linux-image-5.15.0-1022-gcp (Ubuntu package): before 5.15.0-1022.29~20.04.1

linux-image-5.15.0-1020-gke (Ubuntu package): before 5.15.0-1020.25~20.04.1

linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package): before 5.15.0-1018.20

linux-image-5.15.0-1018-raspi (Ubuntu package): before 5.15.0-1018.20

linux-image-raspi (Ubuntu package): before 5.15.0.1018.17

linux-image-5.15.0-1018-intel-iotg (Ubuntu package): before 5.15.0-1018.23

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1018.17

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1018.19

External links

http://ubuntu.com/security/notices/USN-5729-2

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 access control

EUVDB-ID: #VU67587

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-2022-40768

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

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

The vulnerability exists due to improper access restrictions in the drivers/scsi/stex.c in the Linux kernel. A local user can obtain sensitive information from kernel memory because stex_queuecommand_lck lacks a memset for the PASSTHRU_CMD case.

Mitigation

Update the affected package linux-gcp-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1020.25~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1022.29~20.04.1

linux-image-5.15.0-1022-gcp (Ubuntu package): before 5.15.0-1022.29~20.04.1

linux-image-5.15.0-1020-gke (Ubuntu package): before 5.15.0-1020.25~20.04.1

linux-image-5.15.0-1018-raspi-nolpae (Ubuntu package): before 5.15.0-1018.20

linux-image-5.15.0-1018-raspi (Ubuntu package): before 5.15.0-1018.20

linux-image-raspi (Ubuntu package): before 5.15.0.1018.17

linux-image-5.15.0-1018-intel-iotg (Ubuntu package): before 5.15.0-1018.23

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1018.17

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1018.19

External links

http://ubuntu.com/security/notices/USN-5729-2

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.