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Rsyslog: rsyslog: denial of service via heap buffer overflow in rainerscript replace() function (Red Hat Red Hat Enterprise Linux 10)

CVE-2026-78002
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 1.06 % · centile 65 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Awaiting Analysis

Rechercher sur…

Description

A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.

Faiblesses (CWE)

  • CWE-131 — Calcul incorrect de la taille d'un tampon

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hredhat
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · secalert@redhat.com (Secondary)

Références européennes

Produits affectés

ProduitVersions
Red Hat · Red Hat Enterprise Linux 10unaffected 0:8.2510.0-5.el10_2.2 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:8.2412.0-1.el10_0.2 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:8.2102.0-15.el8_10.3 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:8.2102.0-13.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:8.2102.0-13.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:8.2510.0-2.el9_8.2 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:8.2102.0-113.el9_2.3 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:8.2310.0-4.el9_4.2 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:8.2412.0-1.el9_6.2 < *
Red Hat · Red Hat Update Infrastructure 5unaffected 1790241900 < *
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 7

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
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