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prionPRIOn knowledge basePRION:CVE-2021-20181
HistoryMay 13, 2021 - 4:15 p.m.

Race condition

2021-05-1316:15:00
PRIOn knowledge base
www.prio-n.com
5

7.1 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.9%

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

CPENameOperatorVersion
debian_linuxeq9.0
debian_linuxeq10.0
qemule5.2.0