CVE-2021-28831

    Dashboard / Vulnerabilities / CVE-2021-28831

    CVE-2021-28831

    Published: 19 Mar 2021Last Modified: 8 Jul 2026

    Summary:

    Details: decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.

    References: https://lists.debian.org/debian-lts-announce/2025/01/msg00012.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UDQGJRECXFS5EZVDH2OI45FMO436AC4/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7ZIFKPRR32ZYA3WAA2NXFA3QHHOU6FJ/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZASBW7QRRLY5V2R44MQ4QQM4CZIDHM2U/, https://lists.debian.org/debian-lts-announce/2021/04/msg00001.html, https://security.gentoo.org/glsa/202105-09, https://security.netapp.com/advisory/ntap-20250509-0005/, https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- fb957125d8aa83c9df6e54292327983a51ee7ffd
    Fixed -None

    Affected versions

    1_32_1

    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-2021-28831 | CVE-DB