CVE-2020-25725
Medium
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.
SeverityMedium
CVSS5.0
Exploit probability—
Product
Xpdf
PublishedNov 21, 2020
First seenNov 21, 2020
Weakness typeCWE-416Use after free
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xpdfreader xpdf | 4.02 | — |
| fedoraproject fedora | 32, 33 | — |
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