aufs: improperly managed inode reference counts in the vfsub_dentry_open() method (Ubuntu Linux kernel (aufs filesystem module))

CVE-2020-11935
MEDIUM 4.4

En bref

Source
NVD
EPSS
EPSS 0.20 % · centile 10 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
canonical
Statut NVD
Modified

Description

It was discovered that aufs improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service attack.

Faiblesses (CWE)

  • CWE-911 — Improper Update of Reference Count

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hcanonical
CVSS 3.1MEDIUM 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HNVD · security@ubuntu.com (Secondary)
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
Ubuntu · Linux kernel (aufs filesystem module)unaffected 4.4.0-186.216 < 4.4* ; unaffected 4.15.0-112.113 < 4.15* ; unaffected 5.4.0-42.46 < 5.4*

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