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prionPRIOn knowledge basePRION:CVE-2022-4144
HistoryNov 29, 2022 - 6:15 p.m.

Race condition

2022-11-2918:15:00
PRIOn knowledge base
www.prio-n.com
7
qemu
qxl display
out-of-bounds read

5.9 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.4%

An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.