CVE-2021-3545

Description

An information disclosure vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw exists in virgl_cmd_get_capset_info() in contrib/vhost-user-gpu/virgl.c and could occur due to the read of uninitialized memory. A malicious guest could exploit this issue to leak memory from the host.

CVSS Metrics

• v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
• v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.15%• Percentile: 35%

Techniques & Countermeasures

• CWE-908•Use of Uninitialized Resource

  The product uses or accesses a resource that has not been initialized.

Affected Systems

• debian•debian_linux

  11.0

• qemu•qemu

  ≤ 6.0.0

References (5)

• http://www.openwall.com/lists/oss-security/2021/05/31/1
• https://bugzilla.redhat.com/show_bug.cgi?id=1958955
• https://security.netapp.com/advisory/ntap-20210720-0008/
• https://www.debian.org/security/2021/dsa-4980
• https://security.gentoo.org/glsa/202208-27