CVE-2021-45960

    Dashboard / Vulnerabilities / CVE-2021-45960

    CVE-2021-45960

    Published: 1 Jan 2022Last Modified: 8 Jul 2026

    Summary:

    Details: In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

    References: https://security.gentoo.org/glsa/202209-24, https://security.netapp.com/advisory/ntap-20220121-0004/, https://www.tenable.com/security/tns-2022-05, https://bugzilla.mozilla.org/show_bug.cgi?id=1217609, https://www.debian.org/security/2022/dsa-5073, https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf, https://github.com/libexpat/libexpat/issues/531, https://github.com/libexpat/libexpat/pull/534, http://www.openwall.com/lists/oss-security/2022/01/17/3

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -57c7da69b78e3698e112a6b5da19d5109b8232d1

    Affected versions

    R_2_4_2

    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
    CVE-2021-45960 | CVE-DB