| Name | CVE-2020-25725 |
| Description | In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed `t3GlyphStack->cache`, which causes an `heap-use-after-free` problem. The codes of a previous fix for nested Type 3 characters wasn't correctly handling the case where a Type 3 char referred to another char in the same Type 3 font. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| xpdf (PTS) | jessie | 3.03-17 | fixed |
| stretch | 3.04-4 | fixed |
| buster | 3.04-13 | fixed |
| bullseye | 3.04+git20210103-3 | fixed |
| bookworm | 3.04+git20220601-1 | fixed |
| sid, trixie | 3.04+git20240613-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| xpdf | source | (unstable) | (not affected) | | | |
Notes
- xpdf <not-affected> (Debian uses poppler, which is not affected)
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915