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CVE-2021-3544

Date: June 2, 2021

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.

Language: C

Severity Score

Related Resources (11)

https://security-tracker.debian.org/tracker/CVE-2021-3544
https://security.netapp.com/advisory/ntap-20210720-0008/
https://security.archlinux.org/CVE-2021-3544
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3544
https://bugzilla.redhat.com/show_bug.cgi?id=1958935
https://security.gentoo.org/glsa/202208-27
https://www.debian.org/security/2021/dsa-4980
https://security.alpinelinux.org/vuln/CVE-2021-3544
http://www.openwall.com/lists/oss-security/2021/05/31/1
https://nvd.nist.gov/vuln/detail/CVE-2021-3544
https://www.mend.io/vulnerability-database/CVE-2021-3544

Severity Score

Weakness Type (CWE)

Missing Release of Memory after Effective Lifetime

CWE-401

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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