media: dvb-net: fix OOB access in ULE extension header tables (Linux Linux)

CVE-2026-31405
CRITICAL 9.8

En bref

Source
NVD
EPSS
EPSS 0.55 % · centile 46 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables in handle_one_ule_extension() are declared with 255 elements (valid indices 0-254), but the index htype is derived from network-controlled data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When htype equals 255, an out-of-bounds read occurs on the function pointer table, and the OOB value may be called as a function pointer. Add a bounds check on htype against the array size before either table is accessed. Out-of-range values now cause the SNDU to be discarded.

Faiblesses (CWE)

  • CWE-125 — Lecture hors limites

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e51238718217c4abdb3ccc3b0c0cde265c7ec629 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b2bd2ee73b697c177157bba534e1b1064c2e66a0 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 29ef43ceb121d67b87f4cbb08439e4e9e732eff8 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1a6da3dbb9985d00743073a1cc1f96e59f5abc30 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 145e50c2c700fa52b840df7bab206043997dd18e ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 5.10.253 ≤ 5.10.* ; unaffected 5.15.203 ≤ 5.15.* ; unaffected 6.1.167 ≤ 6.1.* ; unaffected 6.6.130 ≤ 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