| Name | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-4980-1 |
| Debian Bugs | 989042 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | bullseye | 1:5.2+dfsg-11+deb11u3 | fixed |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | fixed |
| bookworm | 1:7.2+dfsg-7+deb12u7 | fixed |
| sid, trixie | 1:9.1.1+ds-5 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| qemu | source | stretch | (not affected) | | | |
| qemu | source | buster | (not affected) | | | |
| qemu | source | bullseye | 1:5.2+dfsg-11+deb11u1 | | DSA-4980-1 | |
| qemu | source | (unstable) | 1:6.1+dfsg-1 | | | 989042 |
Notes
[buster] - qemu <not-affected> (Only minimal support present and not installed in binary packages)
[stretch] - qemu <not-affected> (The vulnerable code was introduced later)
https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01155.html
https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg01153.html
https://gitlab.com/qemu-project/qemu/-/commit/121841b2