CVE-2023-6918

Libssh: missing checks for return values for digests

En bref

Sévérité
LOW 3.7
EPSS
EPSS 1.41 % · centile 72 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Modified

Description

A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1LOW 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Lredhat
CVSS 3.1LOW 3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LNVD · secalert@redhat.com (Secondary)
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LNVD · nvd@nist.gov (Primary)

Faiblesses (CWE)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Red Hat · Red Hat Enterprise Linux 8unaffected 0:0.9.6-14.el8 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:0.9.6-14.el8 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:0.10.4-13.el9 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:0.10.4-13.el9 < *
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 7
Red Hat · Red Hat Enterprise Linux 7

Références

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