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CVE-2026-18917

Libvirt: integer overflow in nodegetfreepages rpc handler leading to heap buffer overflow

HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.18 % · centile 8 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
redhat
Statut NVD
Awaiting Analysis

Description

A flaw was found in libvirt. An unprivileged local user could exploit an integer overflow vulnerability in the NodeGetFreePages RPC handler. This flaw allows crafted values to bypass a size check, leading to an undersized memory buffer. Subsequently, real NUMA node data can overwrite this buffer. This heap buffer overflow can corrupt the root libvirt daemon's memory, potentially leading to a denial of service or local privilege escalation.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hredhat
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · secalert@redhat.com (Secondary)

Références européennes

Produits affectés

ProduitVersions
Red Hat · Red Hat Enterprise Linux 10unaffected 0:11.10.0-12.9.el10_2 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:10.10.0-8.12.el10_0 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:4.5.0-36.el7_9.7 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 8040020260916092751.522a0ee4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 8040020260916092751.522a0ee4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 8060020260910092451.ad008a3a < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 8060020260910092451.ad008a3a < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 8080020260910092120.63b34585 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 8080020260910092120.63b34585 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:11.10.0-12.7.el9_8 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:9.0.0-10.17.el9_2 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:10.0.0-6.24.el9_4 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:10.10.0-7.19.el9_6 < *
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 8
Red Hat · Red Hat Enterprise Linux for NVIDIA 26

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