Description
The is_path_absolute function in scheduler/client.c for the daemon in CUPS before 1.1.23 allows remote attackers to cause a denial of service (CPU consumption by tight loop) via a "..\.." URL in an HTTP request.
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 | cups | 1.1.23-1 | — |
| Debian 13 | cups | 1.1.23-1 | — |
| Debian 12 | cups | 1.1.23-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | cups +2 | 1:1.1.22-0.rc1.9.8 | RHSA-2005:772 |
Advisories 1
- RHSA-2005:772 Red Hat Security Advisory: cups security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- FEDORA-2005-908 vendor-advisory
- http://www.cups.org/relnotes.php#010123
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=168072
- 1012811 vdb-entry
- RHSA-2005:772 vendor-advisory
- oval:org.mitre.oval:def:9774 vdb-entry signature
- http://www.cups.org/str.php?L1042+P0+S-1+C0+I0+E0+Q1042