Description
Buffer overflow in xtrlock 2.0 allows local users to cause a denial of service (application crash) and hijack the desktop session.
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 | xtrlock | 2.0-9 | — |
| Debian 13 | xtrlock | 2.0-9 | — |
| Debian 12 | xtrlock | 2.0-9 | — |
| Debian 3.0 | xtrlock | 2.0-6woody2 | DSA-649-1 |
Advisories 1
- DSA-649-1 xtrlock - buffer overflow Debian Security (DSA / DLA) · Mar 9, 2026
References
- 13938 third-party-advisory
- xtrlock-screen-lock-bypass(18991) vdb-entry
- DSA-649 vendor-advisory
- 12316 vdb-entry