| Name | CVE-2023-3301 |
| Description | A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | jessie, jessie (lts) | 1:2.1+dfsg-12+deb8u23 | vulnerable |
| stretch (security) | 1:2.8+dfsg-6+deb9u17 | fixed |
| stretch (lts), stretch | 1:2.8+dfsg-6+deb9u19 | fixed |
| buster (security), buster, buster (lts) | 1:3.1+dfsg-8+deb10u12 | fixed |
| bullseye | 1:5.2+dfsg-11+deb11u3 | fixed |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | vulnerable |
| 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 | jessie | (unfixed) | end-of-life | | |
| qemu | source | stretch | (not affected) | | | |
| qemu | source | buster | (not affected) | | | |
| qemu | source | bullseye | 1:5.2+dfsg-11+deb11u3 | | | |
| qemu | source | bookworm | 1:7.2+dfsg-7+deb12u1 | | | |
| qemu | source | (unstable) | 1:8.0.3+dfsg-1 | | | |
Notes
[buster] - qemu <not-affected> (vhost-vdpa introduced in v5.1)
https://github.com/qemu/qemu/commit/a0d7215e339b61c7d7a7b3fcf754954d80d93eb8 (v8.1.0-rc0)
https://github.com/qemu/qemu/commit/aab37b2002811f112d5c26337473486d7d585881 (v8.0.3)
https://github.com/qemu/qemu/commit/3d12598b74ed4bcc6db8b50818a95c4b770d4487 (v7.2.4)
[stretch] - qemu <not-affected> (vhost-vdpa introduced in v5.1)