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CVE-2023-3390

Published: Jun 28, 2023

Modified: Feb 13, 2025

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97.

Vendor	Product	Versions
Linux	Linux Kernel	affected `3.16 - < 6.4`

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://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1240eb93f0616b21c675416516ff3d74798fdc97

https://kernel.dance/1240eb93f0616b21c675416516ff3d74798fdc97

https://www.debian.org/security/2023/dsa-5448

https://www.debian.org/security/2023/dsa-5461

https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html

https://security.netapp.com/advisory/ntap-20230818-0004/

http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html

https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

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