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DEBIAN-CVE-2024-40931

DEBIAN-CVE-2024-40931 PUBLISHED CVSS 5.5 MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure snd_una is properly initialized on connect This is strictly related to commit fb7a0d334894 ("mptcp: ensure snd_nxt is properly initialized on connect"). It turns out that syzkaller can trigger the retransmit after fallback and before processing any other incoming packet - so that snd_una is still left uninitialized. Address the issue explicitly initializing snd_una together with snd_nxt and write_seq.

Risk Scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Debian:14linux0, 0
Debianlinux
Debian:12linux6.1.38-2, 6.1.38-3, 6.1.38-4
Debian:11linux-6.1*, 0, 6.1.106-3
Debian:13linux0, 0
Debian:11linux5.10.197-1, 5.10.205-1, 5.10.205-2

Timeline

  • Jul 12, 2024 CVE Published
  • Apr 28, 2026 CVE Updated
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