CVE-2020-25725: Fedoraproject Fedora

Medium severity, CVSS 5.5. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• Fedoraproject Fedora: version 32 only; version 33 only
• Xpdfreader Xpdf: version 4.02 only

Published 2020-11-21. Last modified 2026-06-17.