CVE-2020-21047

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    CVE-2020-21047

    Published: 22 Aug 2023Last Modified: 28 Aug 2026

    Summary:

    Details: The libcpu component which is used by libasm of elfutils version 0.177 (git 47780c9e), suffers from denial-of-service vulnerability caused by application crashes due to out-of-bounds write (CWE-787), off-by-one error (CWE-193) and reachable assertion (CWE-617); to exploit the vulnerability, the attackers need to craft certain ELF files which bypass the missing bound checks.

    References: https://lists.debian.org/debian-lts-announce/2023/09/msg00026.html, https://sourceware.org/git/?p=elfutils.git%3Ba=commitdiff%3Bh=99dc63b10b3878616b85df2dfd2e4e7103e414b8, https://sourceware.org/bugzilla/show_bug.cgi?id=25068

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 5643e037cb7a38ed5d52f50421be706ea8014e3d
    Fixed -None

    Affected versions

    0.177

    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-2020-21047 | CVE-DB