CVE-2021-36976

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    CVE-2021-36976

    Published: 20 Jul 2021Last Modified: 7 Aug 2026

    Summary:

    Details: libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).

    References: https://lists.debian.org/debian-lts-announce/2024/11/msg00007.html, http://seclists.org/fulldisclosure/2022/Mar/27, http://seclists.org/fulldisclosure/2022/Mar/28, http://seclists.org/fulldisclosure/2022/Mar/29, https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libarchive/OSV-2021-557.yaml, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SE5NJQNM22ZE5Z55LPAGCUHSBQZBKMKC/, https://security.gentoo.org/glsa/202208-26, https://support.apple.com/kb/HT213182, https://support.apple.com/kb/HT213183, https://support.apple.com/kb/HT213193, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32375

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- cce09646b566c61c2debff58a70da780b8457883
    Fixed -None

    Affected versions

    v3.5.2
    v3.5.1
    v3.5.0

    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-2021-36976 | CVE-DB