KEYS: prevent NULL pointer dereference in find_asymmetric_key() (Linux Linux)

CVE-2024-47743
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.22 % · centile 13 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: KEYS: prevent NULL pointer dereference in find_asymmetric_key() In find_asymmetric_key(), if all NULLs are passed in the id_{0,1,2} arguments, the kernel will first emit WARN but then have an oops because id_2 gets dereferenced anyway. Add the missing id_2 check and move WARN_ON() to the final else branch to avoid duplicate NULL checks. Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool.

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 < 3322fa8f2aa40b0b3651034cd541647a600cc6c0 ; affected 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 < a3765b497a4f5224cb2f7a6a2d3357d3066214ee ; affected 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 < 13b5b401ead95b5d8266f64904086c55b6024900 ; affected 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 < 0d3b0706ada15c333e6f9faf19590ff715e45d1e ; affected 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360 < 70fd1966c93bf3bfe3fe6d753eb3d83a76597eef
Linux · Linuxaffected 5.17 ; unaffected 0 < 5.17 ; unaffected 6.1.113 ≤ 6.1.* ; unaffected 6.6.54 ≤ 6.6.* ; unaffected 6.10.13 ≤ 6.10.* ; unaffected 6.11.2 ≤ 6.11.*

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