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prionPRIOn knowledge basePRION:CVE-2022-46340
HistoryDec 14, 2022 - 9:15 p.m.

Design/Logic Flaw

2022-12-1421:15:00
PRIOn knowledge base
www.prio-n.com
7
x.org
security flaw
local privilege escalation
remote code execution
stack corruption
xtest extension
byte order
vulnerability

8.6 High

AI Score

Confidence

High

0.025 Low

EPSS

Percentile

90.3%

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.