Description
zhcon before 0.2 does not drop privileges before reading a user configuration file, which allows local users to read arbitrary files.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | zhcon | 1:0.2.3-8.1 | — |
| Debian 13 | zhcon | 1:0.2.3-8.1 | — |
| Debian 12 | zhcon | 1:0.2.3-8.1 | — |
| Debian 3.0 | zhcon | 1:0.2-4woody3 | DSA-655-1 |
Advisories 1
- DSA-655-1 zhcon - missing privilege release Debian Security (DSA / DLA) · Mar 9, 2026
References
- 12343 vdb-entry
- 1012977 vdb-entry
- 13982 third-party-advisory
- MDKSA-2005:012 vendor-advisory
- 13977 third-party-advisory
- DSA-655 vendor-advisory
- 13987 third-party-advisory
- zhcon-information-disclosure(19045) vdb-entry