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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.2 HIGHCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.46% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- qemu/qemu · debian/debian linux
- Source
- secalert@redhat.com
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.