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CVE-2023-42756

Public on 2023-09-28
Modified on 2024-01-14
Description

A flaw was found in the Netfilter subsystem of the Linux kernel. A race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP can lead to a kernel panic due to the invocation of `__ip_set_put` on a wrong `set`. This issue may allow a local user to crash the system.

Severity
Medium
See what this means
CVSS v3 Base Score
4.4
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-10-12 17:29 ALAS2KERNEL-5.15-2023-028
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-10-31 00:17 ALAS2KERNEL-5.10-2023-042
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-10-31 00:16 ALAS2KERNEL-5.4-2023-055
Amazon Linux 2023 kernel 2023-10-12 16:11 ALAS2023-2023-385

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2023-42756 Mitre: CVE-2023-42756 FAQs regarding Amazon Linux ALAS/CVE Severity