CVE-2023-2008

2023-04-1400:00:00

ubuntu.com

linux

kernel

udmabuf

privilege escalation

memory access

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

39.6%

JSON

A flaw was found in the Linux kernel’s udmabuf device driver. The specific
flaw exists within a fault handler. The issue results from the lack of
proper validation of user-supplied data, which can result in a memory
access past the end of an array. An attacker can leverage this
vulnerability to escalate privileges and execute arbitrary code in the
context of the kernel.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< 5.4.0-126.142UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-48.54UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1085.92UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1020.24UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1020.24~20.04.1UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1085.92~18.04.1UNKNOWN
ubuntu20.04noarchlinux-azure< 5.4.0-1091.96UNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1020.25UNKNOWN
ubuntu20.04noarchlinux-azure-5.15< 5.15.0-1020.25~20.04.1UNKNOWN
ubuntu18.04noarchlinux-azure-5.4< 5.4.0-1091.96~18.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< 5.4.0-126.142	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-48.54	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1085.92	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1020.24	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1020.24~20.04.1	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.4	< 5.4.0-1085.92~18.04.1	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< 5.4.0-1091.96	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< 5.15.0-1020.25	UNKNOWN
ubuntu	20.04	noarch	linux-azure-5.15	< 5.15.0-1020.25~20.04.1	UNKNOWN
ubuntu	18.04	noarch	linux-azure-5.4	< 5.4.0-1091.96~18.04.1	UNKNOWN