CVE-2022-4269

2022-12-0500:00:00

ubuntu.com

linux kernel

traffic control

tc subsystem

networking configuration

cpu lockup

denial of service

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using
a specific networking configuration (redirecting egress packets to ingress
using TC action “mirred”) a local unprivileged user could trigger a CPU
soft lockup (ABBA deadlock) when the transport protocol in use (TCP or
SCTP) does a retransmission, resulting in a denial of service condition.

Bugs

<https://bugzilla.redhat.com/show_bug.cgi?id=2150272>

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< 5.4.0-156.173UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-79.86UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-45.46UNKNOWN
ubuntu23.04noarchlinux< 6.2.0-23.23UNKNOWN
ubuntu22.04noarchlinux-allwinner-5.19< 5.19.0-1014.14~22.04.1UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1107.115UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1042.47UNKNOWN
ubuntu22.10noarchlinux-aws< 5.19.0-1027.28UNKNOWN
ubuntu23.04noarchlinux-aws< 6.2.0-1005.5UNKNOWN
ubuntu23.10noarchlinux-aws< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< 5.4.0-156.173	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-79.86	UNKNOWN
ubuntu	22.10	noarch	linux	< 5.19.0-45.46	UNKNOWN
ubuntu	23.04	noarch	linux	< 6.2.0-23.23	UNKNOWN
ubuntu	22.04	noarch	linux-allwinner-5.19	< 5.19.0-1014.14~22.04.1	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1107.115	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1042.47	UNKNOWN
ubuntu	22.10	noarch	linux-aws	< 5.19.0-1027.28	UNKNOWN
ubuntu	23.04	noarch	linux-aws	< 6.2.0-1005.5	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< any	UNKNOWN