CVE-2021-3546

An out-of-bounds write 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 occurs while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command from the guest. It could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service condition, or potential code execution with the privileges of the QEMU process.

• CWE-787
• CWE-787

• http://www.openwall.com/lists/oss-security/2021/05/31/1Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1958978Issue Tracking, Third Party Advisory
• https://security.gentoo.org/glsa/202208-27Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210720-0008/Third Party Advisory
• https://www.debian.org/security/2021/dsa-4980Third Party Advisory
• http://www.openwall.com/lists/oss-security/2021/05/31/1Mailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1958978Issue Tracking, Third Party Advisory
• https://security.gentoo.org/glsa/202208-27Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210720-0008/Third Party Advisory
• https://www.debian.org/security/2021/dsa-4980Third Party Advisory

Published

Jun 2, 2021

Last Modified

Jun 17, 2026

Status

Modified

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