CVE-2024-21885
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Xorg-server
PublishedFeb 28, 2024
First seenFeb 28, 2024
Weakness typeCWE-122CWE-122
How to fix
Update
- xorg-server21.1.11 or later
- xwayland23.2.4 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2024:0320
- access.redhat.com/errata/RHSA-2024:0557
- access.redhat.com/errata/RHSA-2024:0558
- access.redhat.com/errata/RHSA-2024:0597
- access.redhat.com/errata/RHSA-2024:0607
- access.redhat.com/errata/RHSA-2024:0614
- access.redhat.com/errata/RHSA-2024:0617
- access.redhat.com/errata/RHSA-2024:0621
- access.redhat.com/errata/RHSA-2024:0626
- access.redhat.com/errata/RHSA-2024:0629
- access.redhat.com/errata/RHSA-2024:2169
- access.redhat.com/errata/RHSA-2024:2170
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xorg-server | v < 21.1.11 | 21.1.11 |
| xwayland | v < 23.2.4 | 23.2.4 |
| Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | No range specified | — |
| enterprise_linux 7 | No range specified | — |
| enterprise_linux 8 | No range specified | — |
| rhel_e4s 8.2 | No range specified | — |
| rhel_e4s 8.4 | No range specified | — |
| rhel_eus 8.6 | No range specified | — |
| rhel_eus 8.8 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhel_eus 9.0 | No range specified | — |
| rhel_eus 9.2 | No range specified | — |
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