Fiche vulnérabilité
CVE-2022-46340 : faille élevée x.org x server (CVSS 8.8)
Description
A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.
En bref
- Sévérité
- Élevée (CVSS 8.8)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 14 déc. 2022
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- x.org x server
- fedoraproject fedora
- debian debian linux
Références
- Fiche CVE-2022-46340 sur le NVD (NIST)
- access.redhat.com/security/cve/CVE-2022-46340
- bugzilla.redhat.com/show_bug.cgi
- lists.fedoraproject.org/archives/list/package…
- lists.fedoraproject.org/archives/list/package…
- lists.fedoraproject.org/archives/list/package…
- lists.fedoraproject.org/archives/list/package…
- security.gentoo.org/glsa/202305-30
- debian.org/security/2022/dsa-5304