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CWE

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CVE-2023-1281

Published: Mar 22, 2023

Modified: Mar 5, 2025

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.

Vendor	Product	Versions
Linux	Linux Kernel	affected `4.14 - <= 6.2`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2

http://www.openwall.com/lists/oss-security/2023/04/11/3

https://security.netapp.com/advisory/ntap-20230427-0004/

https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html

https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html

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