CVE-2026-43383

Public on 2026-05-08
Modified on 2026-06-15
Description
In the Linux kernel, the following vulnerability has been resolved:

net/tcp-md5: Fix MAC comparison to be constant-time
Severity
Low severity
Low
See what this means
CVSS v3 Base Score
3.7
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core kernel Pending Fix
Amazon Linux 2 - Kernel-5.15 Extra kernel Pending Fix
Amazon Linux 2 - Kernel-5.4 Extra kernel Pending Fix
Amazon Linux 2 - Kernel-5.10 Extra kernel 2026-05-09 ALAS2KERNEL-5.10-2026-118 Fixed
Amazon Linux 2023 kernel 2026-05-09 ALAS2023-2026-1681 Fixed
Amazon Linux 2023 kernel6.12 2026-04-30 ALAS2023-2026-1594 Fixed
Amazon Linux 2023 kernel6.18 2026-04-30 ALAS2023-2026-1596 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N