CVE-2023-3269

2023-07-1100:00:00

ubuntu.com

100

linux kernel

memory management

use-after-free

arbitrary code execution

container escalation

root privileges

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

25.6%

JSON

A vulnerability exists in the memory management subsystem of the Linux
kernel. The lock handling for accessing and updating virtual memory areas
(VMAs) is incorrect, leading to use-after-free problems. This issue can be
successfully exploited to execute arbitrary kernel code, escalate
containers, and gain root privileges.

Notes

Author	Note
	Priority reason: Local privilege escalation to root
sbeattie	aka StackRot introduced in v6.1 kernels, so only affects kernels in 23.04 and linux-oem-6.1

OSVersionArchitecturePackageVersionFilename
ubuntu23.04noarchlinux< 6.2.0-26.26UNKNOWN
ubuntu23.04noarchlinux-aws< 6.2.0-1008.8UNKNOWN
ubuntu22.04noarchlinux-aws-6.2< 6.2.0-1008.8~22.04.1UNKNOWN
ubuntu23.04noarchlinux-azure< 6.2.0-1008.8UNKNOWN
ubuntu22.04noarchlinux-azure-6.2< 6.2.0-1008.8~22.04.1UNKNOWN
ubuntu22.04noarchlinux-azure-fde-6.2< 6.2.0-1008.8~22.04.1UNKNOWN
ubuntu23.04noarchlinux-gcp< 6.2.0-1010.10UNKNOWN
ubuntu22.04noarchlinux-gcp-6.2< 6.2.0-1010.10~22.04.1UNKNOWN
ubuntu22.04noarchlinux-hwe-6.2< 6.2.0-26.26~22.04.1UNKNOWN
ubuntu23.04noarchlinux-ibm< 6.2.0-1006.6UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	23.04	noarch	linux	< 6.2.0-26.26	UNKNOWN
ubuntu	23.04	noarch	linux-aws	< 6.2.0-1008.8	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.2	< 6.2.0-1008.8~22.04.1	UNKNOWN
ubuntu	23.04	noarch	linux-azure	< 6.2.0-1008.8	UNKNOWN
ubuntu	22.04	noarch	linux-azure-6.2	< 6.2.0-1008.8~22.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-azure-fde-6.2	< 6.2.0-1008.8~22.04.1	UNKNOWN
ubuntu	23.04	noarch	linux-gcp	< 6.2.0-1010.10	UNKNOWN
ubuntu	22.04	noarch	linux-gcp-6.2	< 6.2.0-1010.10~22.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-hwe-6.2	< 6.2.0-26.26~22.04.1	UNKNOWN
ubuntu	23.04	noarch	linux-ibm	< 6.2.0-1006.6	UNKNOWN