PT-2026-46944 · X.Org Foundation+1 · Xwayland+2
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
X.Org X server (affected versions not specified)
Xwayland (affected versions not specified)
Description
An out-of-bounds write flaw exists in the X.Org X server and Xwayland within the
DRIGetBuffers() and DRIGetBuffersWithFormat() functions. A client can trigger an out-of-bounds heap write by requesting multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft. This condition may lead to a server crash or privilege escalation if the X server is running with root privileges.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
LPE
Memory Corruption
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Weakness Enumeration
Related Identifiers
Affected Products
Rocky Linux
X.Org Server
Xwayland