Description
A stack-based buffer over-read exists in PostScriptFunction::transform in Function.cc in Xpdf 4.01.01 because GfxSeparationColorSpace and GfxDeviceNColorSpace mishandle tint transform functions. It can, for example, be triggered by sending a crafted PDF document to the pdftops tool. It might allow an attacker to cause Denial of Service or leak memory data.
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 | poppler | 0.44.0-2 | — |
| Debian 13 | poppler | 0.44.0-2 | — |
| Debian 12 | poppler | 0.44.0-2 | — |
| Debian 8 | poppler | 0.26.5-2+deb8u11 | DLA-1939-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | emscripten +1 | No fix yet | — |
| Ubuntu 26.04 LTS | emscripten +1 | No fix yet | — |
| Ubuntu 25.10 | emscripten +1 | No fix yet | — |
| Ubuntu 24.04 LTS | emscripten +1 | No fix yet | — |
| Ubuntu 22.04 LTS | emscripten +1 | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | emscripten | No fix yet | — |
| Ubuntu 16.04 LTS | emscripten | No fix yet | — |
| Ubuntu Pro 20.04 LTS | texlive-bin | No fix yet | — |
| Ubuntu Pro 18.04 LTS | texlive-bin | No fix yet | — |
| Ubuntu Pro 16.04 LTS | texlive-bin | No fix yet | — |
Advisories 1
- DLA-1939-1 poppler - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://forum.xpdfreader.com/viewtopic.php?f=3&t=41806
- [debian-lts-announce] 20190930 [SECURITY] [DLA 1939-1] poppler security update mailing-list
- FEDORA-2019-a457286734 vendor-advisory
- FEDORA-2019-01da705767 vendor-advisory
- FEDORA-2019-759ba8202b vendor-advisory