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CVE-2023-4004

Public on 2023-07-31
Modified on 2024-01-12
Description

A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.

Severity
Important
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-08-31 22:50 ALAS2KERNEL-5.10-2023-039
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-08-31 22:46 ALAS2KERNEL-5.15-2023-026
Amazon Linux 2023 kernel 2023-08-31 21:45 ALAS2023-2023-330
Amazon Linux 2 - Livepatch Extra kernel-livepatch-5.10.186-179.751 2023-10-31 00:16 ALAS2LIVEPATCH-2023-155

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2023-4004 Mitre: CVE-2023-4004 FAQs regarding Amazon Linux ALAS/CVE Severity