Description
pdftops.pl before 1.20 in alternate pdftops filter allows local users to overwrite arbitrary files via a symlink attack on the pdfin.[PID].tmp temporary file, which is created when pdftops reads a PDF file from stdin, such as when pdftops is invoked by CUPS.
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 | 1.3.5-1 | — |
| Debian 13 | cups | 1.3.5-1 | — |
| Debian 12 | cups | 1.3.5-1 | — |
| Debian 4.0 | cupsys | 1.2.7-4etch2 | DSA-1437-1 |
Advisories 1
- DSA-1437-1 cupsys Debian Security (DSA / DLA) · Mar 9, 2026
References
- 28113 third-party-advisory
- 28200 third-party-advisory
- USN-563-1 vendor-advisory
- https://bugs.gentoo.org/show_bug.cgi?id=201042
- GLSA-200712-14 vendor-advisory
- 26919 vdb-entry
- http://www.cups.org/articles.php?L515
- DSA-1437 vendor-advisory
- 28386 third-party-advisory
- 42029 vdb-entry
- 28139 third-party-advisory