CVE-2023-51781

2024-01-1100:00:00

ubuntu.com

linux kernel

atalk_ioctl

use-after-free

vulnerability

net/appletalk/ddp.c

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

An issue was discovered in the Linux kernel before 6.6.8. atalk_ioctl in
net/appletalk/ddp.c has a use-after-free because of an atalk_recvmsg race
condition.

Bugs

Notes

Author	Note
	Priority reason: A use-after-free vulnerability in the linux kernel accessible from an unprivileged user (unless the appletalk module is block from auto-loading).

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-223.235UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-172.190UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-97.107UNKNOWN
ubuntu23.10noarchlinux< 6.5.0-21.21UNKNOWN
ubuntu14.04noarchlinux< anyUNKNOWN
ubuntu16.04noarchlinux< 4.4.0-252.286UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1166.179UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1119.129UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1055.60UNKNOWN
ubuntu23.10noarchlinux-aws< 6.5.0-1014.14UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-223.235	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-172.190	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-97.107	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-21.21	UNKNOWN
ubuntu	14.04	noarch	linux	< any	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-252.286	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1166.179	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1119.129	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1055.60	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< 6.5.0-1014.14	UNKNOWN