| Name | CVE-2020-24332 |
| Description | An issue was discovered in TrouSerS through 0.3.14. If the tcsd daemon is started with root privileges, the creation of the system.data file is prone to symlink attacks. The tss user can be used to create or corrupt existing files, which could possibly lead to a DoS attack. |
| 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 |
|---|
| trousers (PTS) | jessie | 0.3.13-3 | vulnerable |
| buster, stretch | 0.3.14+fixed1-1 | vulnerable |
| bullseye | 0.3.14+fixed1-1.2 | vulnerable |
| bookworm | 0.3.15-0.3 | fixed |
| sid, trixie | 0.3.15-0.4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| trousers | source | (unstable) | 0.3.15-0.1 | unimportant | | |
Notes
https://bugzilla.suse.com/show_bug.cgi?id=1164472
https://sourceforge.net/p/trousers/mailman/message/37015817/
https://www.openwall.com/lists/oss-security/2020/08/14/1
In Debian, tcsd gets started under the tss user
[jessie] - trousers <ignored> (tss service gets started as non-root user via init script)