Cette page suit l'état du correctif pour Debian. La vulnérabilité elle-même est décrite sur la page CVE principale. Voir CVE-2026-62430 →

DEBIAN-CVE-2026-62430

Accesses to the CMOS memory contents are done using an indirect IO port pair. Therefore Xen needs to cache the guest chosen index, and one of the usa...

Description d'origine

La description telle que publiée par la source (souvent en anglais).

Accesses to the CMOS memory contents are done using an indirect IO port pair. Therefore Xen needs to cache the guest chosen index, and one of the usages of the index didn't take the necessary locking to avoid concurrent changes. As a result, a guest could change the index after it being checked, causing a subsequent out-of-bound read access to the contents of an array.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Paquets affectés

Debian:12 xen

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.7-0+deb12u1"}]}]

Debian:13 xen

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.20.3+127-gc42374a105-0+deb13u1"}]}]

Debian:14 xen

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.20.3+127-gc42374a105-1"}]}]

Références

advisory security-tracker.debian.org