| 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) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| xpdf (PTS) | bullseye | 3.04+git20210103-3 | fixed |
| bookworm | 3.04+git20220601-1 | fixed | |
| forky, sid, trixie | 3.04+git20250304-1 | 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) |
- xpdf <not-affected> (Debian uses poppler, which is not affected)
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915