CVE-2021-30501

    Dashboard / Vulnerabilities / CVE-2021-30501

    CVE-2021-30501

    Published: 27 May 2021Last Modified: 8 Jul 2026

    Summary:

    Details: An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.0. The flow allows attackers to cause a denial of service (abort) via a crafted file.

    References: https://github.com/upx/upx/issues/486, https://bugzilla.redhat.com/show_bug.cgi?id=1948696, https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46, https://github.com/upx/upx/pull/487

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 69ca635c4c0ba474e9ca583dbb42e3d028c4533a
    Fixed -None

    Affected versions

    4.0.0

    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-2021-30501 | CVE-DB