CVE-2022-3586

2022-10-1900:00:00

ubuntu.com

linux kernel

networking code

use-after-free

denial of service

CVSS3

5.5

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

EPSS

0.001

Percentile

27.1%

JSON

A flaw was found in the Linux kernel’s networking code. A use-after-free
was found in the way the sch_sfb enqueue function used the socket buffer
(SKB) cb field after the same SKB had been enqueued (and freed) into a
child qdisc. This flaw allows a local, unprivileged user to crash the
system, causing a denial of service.

Notes

Author	Note
sbeattie	ZDI-CAN-18231

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-201.212UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-136.153UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-57.63UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-28.29UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-240.274UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1147.159UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1093.101UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1027.31UNKNOWN
ubuntu22.10noarchlinux-aws< 5.19.0-1016.17UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1118.124UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-201.212	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-136.153	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-57.63	UNKNOWN
ubuntu	22.10	noarch	linux	< 5.19.0-28.29	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-240.274	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1147.159	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1093.101	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1027.31	UNKNOWN
ubuntu	22.10	noarch	linux-aws	< 5.19.0-1016.17	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< 4.4.0-1118.124	UNKNOWN