netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() (Linux Linux)

CVE-2026-97417
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 0.49 % · centile 42 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() The timestamp-only fast path dereferences the option stream as *(__be32 *)ptr, which assumes 4-byte alignment that the TCP option stream does not guarantee. Use get_unaligned_be32() instead, which reads the value safely and already returns host byte order, so the htonl() on the comparison constant can be dropped. This matches the existing get_unaligned_be32() use later in the same function.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9 < 740ad3d17a281f7764dda4dbeb37cea52e2e31ae ; affected bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9 < a0523267de2523522b0f70972dd1ffa22ec6176c ; affected bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9 < 55bcc3376cd7b18954cc9814da697504fdaf12bf ; affected bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9 < 0d5ad732e4fdc569eb85861115e8f7b4c2c67852 ; affected bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9 < 7ecfa46a536578a7ed335ddf31a854127268c27c ; affected bb9fc37358ffa9de1cc2b2b6f1a559b926ef50d9 < 4abc1af7ac209c066f4e5dd75cdd56876e5829a9
Linux · Linuxaffected 3.1 ; unaffected 0 < 3.1 ; unaffected 5.10.271 ≤ 5.10.* ; unaffected 5.15.222 ≤ 5.15.* ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD