batman-adv: fix OOB read/write in network-coding decode (Linux Linux)

CVE-2025-39839
HIGH 8.8

En bref

Source
NVD
EPSS
EPSS 0.26 % · centile 18 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix OOB read/write in network-coding decode batadv_nc_skb_decode_packet() trusts coded_len and checks only against skb->len. XOR starts at sizeof(struct batadv_unicast_packet), reducing payload headroom, and the source skb length is not verified, allowing an out-of-bounds read and a small out-of-bounds write. Validate that coded_len fits within the payload area of both destination and source sk_buffs before XORing.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 2df5278b0267c799f3e877e8eeddbb6e93cda0bb < 30fc47248f02b8a14a61df469e1da4704be1a19f ; affected 2df5278b0267c799f3e877e8eeddbb6e93cda0bb < 1e36c6c8dc8023b4bbe9a16e819f9998b9b6a183 ; affected 2df5278b0267c799f3e877e8eeddbb6e93cda0bb < 5d334bce9fad58cf328d8fa14ea1fff855819863 ; affected 2df5278b0267c799f3e877e8eeddbb6e93cda0bb < dce6c2aa70e94c04c523b375dfcc664d7a0a560a ; affected 2df5278b0267c799f3e877e8eeddbb6e93cda0bb < bb37252c9af1cb250f34735ee98f80b46be3cef1 ; affected 2df5278b0267c799f3e877e8eeddbb6e93cda0bb < 20080709457bc1e920eb002483d7d981d9b2ac1c
Linux · Linuxaffected 3.10 ; unaffected 0 < 3.10 ; unaffected 5.4.299 ≤ 5.4.* ; unaffected 5.10.243 ≤ 5.10.* ; unaffected 5.15.192 ≤ 5.15.* ; unaffected 6.1.151 ≤ 6.1.*

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