| Name | CVE-2023-46246 |
| Description | Vim is an improved version of the good old UNIX editor Vi. Heap-use-after-free in memory allocated in the function `ga_grow_inner` in in the file `src/alloc.c` at line 748, which is freed in the file `src/ex_docmd.c` in the function `do_cmdline` at line 1010 and then used again in `src/cmdhist.c` at line 759. When using the `:history` command, it's possible that the provided argument overflows the accepted value. Causing an Integer Overflow and potentially later an use-after-free. This vulnerability has been patched in version 9.0.2068.
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| 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 | vulnerable |
| stretch (security) | 2:8.0.0197-4+deb9u7 | vulnerable |
| stretch (lts), stretch | 2:8.0.0197-4+deb9u11 | vulnerable |
| buster (security), buster, buster (lts) | 2:8.1.0875-5+deb10u6 | vulnerable |
| bullseye | 2:8.2.2434-3+deb11u1 | vulnerable |
| bookworm | 2:9.0.1378-2 | vulnerable |
| 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 | (unstable) | 2:9.0.2087-1 | unimportant | | |
Notes
https://github.com/vim/vim/security/advisories/GHSA-q22m-h7m2-9mgm
https://github.com/vim/vim/commit/9198c1f2b1ddecde22af918541e0de2a32f0f45a (v9.0.2068)
Crash in CLI tool, no security impact