CVE-2020-27787

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    CVE-2020-27787

    Published: 18 Aug 2022Last Modified: 8 Jul 2026

    Summary:

    Details: A Segmentaation fault was found in UPX in invert_pt_dynamic() function in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.

    References: https://github.com/upx/upx/commit/e2f60adc95334f47e286838dac33160819c5d74d, https://github.com/upx/upx/issues/333

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -d7ba31cab8ce8d95d2c10e88d2ec787ac52005ef

    Affected versions

    v3.95

    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-2020-27787 | CVE-DB