CVE-2020-25725 MEDIUM

CVE-2020-25725

Vendor Glyph & Cog
Product xpdf
Weakness CWE-416
Published November 21, 2020
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

5.0/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

November 21, 2020 CVE published
August 4, 2024 Record updated