| Name | CVE-2021-4173 |
| Description | vim is vulnerable to Use After Free |
| 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 |
|---|
| vim (PTS) | jessie, jessie (lts) | 2:7.4.488-7+deb8u11 | fixed |
| stretch (security) | 2:8.0.0197-4+deb9u7 | fixed |
| stretch (lts), stretch | 2:8.0.0197-4+deb9u11 | fixed |
| buster (security), buster, buster (lts) | 2:8.1.0875-5+deb10u6 | fixed |
| bullseye | 2:8.2.2434-3+deb11u1 | vulnerable |
| bookworm | 2:9.0.1378-2 | fixed |
| sid, trixie | 2:9.1.0861-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| vim | source | jessie | (not affected) | | | |
| vim | source | stretch | (not affected) | | | |
| vim | source | buster | (not affected) | | | |
| vim | source | (unstable) | 2:8.2.3995-1 | | | |
Notes
[bullseye] - vim <no-dsa> (Minor issue)
[buster] - vim <not-affected> (Vulnerable code introduced later)
[stretch] - vim <not-affected> (Vulnerable code introduced later)
https://huntr.dev/bounties/a1b236b9-89fb-4ccf-9689-ba11b471e766
Introduced after: https://github.com/vim/vim/commit/04b12697838b232b8b17c553ccc74cf1f1bdb81c (v8.2.0695)
Fixed by: https://github.com/vim/vim/commit/9c23f9bb5fe435b28245ba8ac65aa0ca6b902c04 (v8.2.3902)
[jessie] - vim <not-affected> (Vulnerable code introduced later)