| Name | CVE-2018-6198 |
| Description | w3m through 0.5.3 does not properly handle temporary files when the ~/.w3m directory is unwritable, which allows a local attacker to craft a symlink attack to overwrite arbitrary files. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 888097 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| w3m (PTS) | buster | 0.5.3-37 | fixed |
| buster (security) | 0.5.3-37+deb10u1 | fixed |
| bullseye | 0.5.3+git20210102-6+deb11u1 | fixed |
| sid, trixie, bookworm | 0.5.3+git20230121-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| w3m | source | stretch | 0.5.3-34+deb9u1 | | | |
| w3m | source | (unstable) | 0.5.3-36 | unimportant | | 888097 |
Notes
https://github.com/tats/w3m/commit/18dcbadf2771cdb0c18509b14e4e73505b242753
Neutralised by kernel hardening