CVE-2021-3544

MEDIUM 6.5CVE-2021-3544 · Published 02/06/2021 · updated 17/06/2026

In short

CVE-2021-3544 is a MEDIUM (CVSS 6.5) vulnerability affecting qemu (qemu).
Chance of exploitation in the next 30 days (EPSS): 0.44%, higher than 37.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
qemu qemu	`≤ 6.0.0`	No fix yet

Description

Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime.

References

openwall.com/lists/oss-security/2021/05/31/1 · Mailing List
bugzilla.redhat.com/show_bug.cgi · Issue Tracking
security.gentoo.org/glsa/202208-27 · Third Party Advisory
security.netapp.com/advisory/ntap-20210720-0008 · Third Party Advisory
debian.org/security/2021/dsa-4980 · Third Party Advisory

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Package

Affected versions

Patched versions

qemu

≤ 6.0.0

No fix yet

More vulnerabilities in qemu

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