MGASA-2021-0112

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    MGASA-2021-0112

    Published: 4 Mar 2021Last Modified: 16 Apr 2026

    Summary: Updated xpdf packages fix security vulnerabilities

    Details: 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 (CVE-2020-25725). Xpdf 4.02 allows stack consumption because of an incorrect subroutine reference in a Type 1C font charstring, related to the FoFiType1C::getOp() function (CVE-2020-35376).

    References: https://advisories.mageia.org/MGASA-2021-0112.html, https://bugs.mageia.org/show_bug.cgi?id=28474, https://lists.fedoraproject.org/archives/list/[email protected]/thread/VLOYVJSM54IL6I5RY4QTJGRS7PIEG44X/

    Affected packages

    Package

    Name: xpdf

    Purl: pkg:rpm/mageia/xpdf?arch=source&distro=mageia-7

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.03-1.mga7

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    MGASA-2021-0112 | CVE-DB