Select your cookie preferences

We use cookies and similar tools to enhance your experience, provide our services, deliver relevant advertising, and make improvements. Approved third parties also use these tools to help us deliver advertising and provide certain site features.

CVE-2022-4269

Public on 2022-12-05
Modified on 2024-01-14
Description

A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.

Severity
Medium
See what this means
CVSS v3 Base Score
5.5
See breakdown
Continue reading

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-06-21 19:12 ALAS2KERNEL-5.10-2023-034
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-04-13 19:51 ALAS2KERNEL-5.15-2023-016
Amazon Linux 2023 kernel 2023-04-13 17:56 ALAS2023-2023-160

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2022-4269 Mitre: CVE-2022-4269 FAQs regarding Amazon Linux ALAS/CVE Severity