CVE-2021-31871

    Dashboard / Vulnerabilities / CVE-2021-31871

    CVE-2021-31871

    Published: 30 Apr 2021Last Modified: 15 Mar 2026

    Summary:

    Details: An issue was discovered in klibc before 2.0.9. An integer overflow in the cpio command may result in a NULL pointer dereference on 64-bit systems.

    References: https://kernel.org/pub/linux/libs/klibc/2.0/, https://lists.debian.org/debian-lts-announce/2021/06/msg00025.html, https://lists.zytor.com/archives/klibc/2021-April/004593.html, http://www.openwall.com/lists/oss-security/2021/04/30/1, https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=2e48a12ab1e30d43498c2d53e878a11a1b5102d5

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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-2021-31871 | CVE-DB