CVE-2024-21885High· 7.8▾ TwilightA flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overfl…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.3 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
1.4%
A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.
xorg-server < 21.1.11xwayland < 23.2.4tigervnc (all versions)xorg-x11-server (all versions)tigervnc (all versions)tigervnc (all versions)xorg-x11-server (all versions)xorg-x11-server-Xwayland (all versions)tigervnc (all versions)tigervnc (all versions)tigervnc (all versions)tigervnc (all versions)tigervnc (all versions)tigervnc (all versions)tigervnc (all versions)tigervnc (all versions)tigervnc (all versions)xorg-x11-server (all versions)xorg-x11-server-Xwayland (all versions)tigervnc (all versions)tigervnc (all versions)xorg-x11-serverRefer to the linked advisories for vendor-supplied fixes and affected version ranges.
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Connected by shared product, vendor, weakness, or advisory.
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