| Name | CVE-2020-8608 |
| Description | In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2142-1, DLA-2144-1, DLA-2288-1, DLA-2551-1, DSA-4733-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libslirp (PTS) | bullseye | 4.4.0-1+deb11u2 | fixed |
| bookworm | 4.7.0-1 | fixed |
| sid, trixie | 4.8.0-1 | fixed |
| qemu (PTS) | jessie, jessie (lts) | 1:2.1+dfsg-12+deb8u23 | fixed |
| 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 | fixed |
| bookworm | 1:7.2+dfsg-7+deb12u7 | fixed |
| sid, trixie | 1:9.2.0+ds-2 | fixed |
| slirp (PTS) | jessie, jessie (lts) | 1:1.0.17-7+deb8u2 | fixed |
| stretch (security), stretch (lts), stretch | 1:1.0.17-8+deb9u1 | fixed |
| buster | 1:1.0.17-8+deb10u1 | fixed |
| sid, trixie, bullseye, bookworm | 1:1.0.17-11 | fixed |
| slirp4netns (PTS) | buster | 0.2.3-1 | vulnerable |
| bullseye | 1.0.1-2 | fixed |
| bookworm | 1.2.0-1 | fixed |
| sid, trixie | 1.2.1-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[buster] - slirp4netns <no-dsa> (Minor issue)
https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843
https://gitlab.freedesktop.org/slirp/libslirp/commit/30648c03b27fb8d9611b723184216cd3174b6775
qemu 1:4.1-2 switched to system libslirp, marking that version as fixed.
slirp4netns 1.0.1-1 switched to system libslirp, marking that version as fixed.
https://github.com/rootless-containers/slirp4netns/security/advisories/GHSA-p3hx-89v2-4r99