CVE-2021-3544

MEDIUM

QEMU <6.0 - Memory Corruption

Title source: llm

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.

Exploits (1)

nomisec WORKING POC

by Goultarde · poc

https://github.com/Goultarde/CVE-2021-3544_RemoteMouse-3.008-RCE

View Code ZIP pw:eip

References (5)

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2021/05/31/1

[Issue Tracking] https://bugzilla.redhat.com/show_bug.cgi?id=1958935

[Third Party Advisory] https://security.gentoo.org/glsa/202208-27

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20210720-0008/

[Third Party Advisory] https://www.debian.org/security/2021/dsa-4980

Scores

CVSS v3 6.5

EPSS 0.0003

EPSS Percentile 9.1%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Classification

CWE

CWE-401

Status published

Affected Products (2)

qemu/qemu < 6.0.0

debian/debian_linux

Timeline

Published Jun 02, 2021

Tracked Since Feb 18, 2026