Vulnerability CVE-2024-21885
Published: 2024-02-28

Description:
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.

Type:

CWE-122

 (Heap-based Buffer Overflow)

 References:
https://access.redhat.com/errata/RHSA-2024:0320
https://access.redhat.com/errata/RHSA-2024:0557
https://access.redhat.com/errata/RHSA-2024:0558
https://access.redhat.com/errata/RHSA-2024:0597
https://access.redhat.com/errata/RHSA-2024:0607
https://access.redhat.com/errata/RHSA-2024:0614
https://access.redhat.com/errata/RHSA-2024:0617
https://access.redhat.com/errata/RHSA-2024:0621
https://access.redhat.com/errata/RHSA-2024:0626
https://access.redhat.com/errata/RHSA-2024:0629
https://access.redhat.com/security/cve/CVE-2024-21885
https://bugzilla.redhat.com/show_bug.cgi?id=2256540
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