Description
xsok 1.02 does not properly drop privileges before finding and executing the "gunzip" program, which allows local users to execute arbitrary commands.
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 | xsok | 1.02-11 | — |
| Debian 13 | xsok | 1.02-11 | — |
| Debian 12 | xsok | 1.02-11 | — |
| Debian 3.0 | xsok | 1.02-9woody2 | DSA-405 |
Advisories 1
- DSA-405 xsok - missing privilege release Debian Security (DSA / DLA) · Mar 9, 2026
References
- xsok-command-execution(14098) vdb-entry
- DSA-405 vendor-advisory
- 9321 vdb-entry