Description
cvsbug in CVS 1.12.12 and earlier creates temporary files insecurely, which allows local users to overwrite arbitrary files and execute arbitrary code via a symlink attack.
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 ↗Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | cvs | 1.11.17-8.RHEL4 | RHSA-2005:756 |
| RHEL 3 | cvs | 1.11.2-28 | RHSA-2005:756 |
Advisories 3
- RHSA-2005:756 Red Hat Security Advisory: cvs security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-802-1 cvs - insecure temporary files Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-806-1 gcvs - insecure temporary files Debian Security (DSA / DLA) · Mar 9, 2026
References
- ADV-2005-1667 vdb-entry
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=166366
- RHSA-2005:756 vendor-advisory
- 16765 third-party-advisory
- 1014857 vdb-entry
- DSA-802 vendor-advisory
- DSA-806 vendor-advisory
- oval:org.mitre.oval:def:10835 vdb-entry signature