| Name | CVE-2021-33938 |
| Description | Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17 allows attackers to 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 |
|---|
| libsolv (PTS) | jessie, jessie (lts) | 0.6.5-1+deb8u1 | vulnerable |
| stretch | 0.6.24-1+deb9u2 | vulnerable |
| buster | 0.6.35-2+deb10u1 | vulnerable |
| bullseye | 0.7.17-1+deb11u1 | fixed |
| bookworm | 0.7.23-1+deb12u1 | fixed |
| sid, trixie | 0.7.31-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libsolv | source | jessie | (unfixed) | end-of-life | | |
| libsolv | source | (unstable) | 0.7.17-1 | | | |
Notes
[buster] - libsolv <no-dsa> (Minor issue)
[stretch] - libsolv <no-dsa> (Minor issue)
https://github.com/openSUSE/libsolv/issues/420
https://github.com/openSUSE/libsolv/commit/0077ef29eb46d2e1df2f230fc95a1d9748d49dec (0.7.17)