ALPINE-CVE-2021-42376

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    ALPINE-CVE-2021-42376

    Published: 15 Nov 2021Last Modified: 14 Jul 2026
    Upstream:
    CVE-2021-42376

    Summary:

    Details: A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.

    References: https://security.alpinelinux.org/vuln/CVE-2021-42376

    Affected packages

    Package

    Name: busybox

    Purl: pkg:apk/alpine/busybox?arch=source

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 1.16.0
    Fixed -0

    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
    ALPINE-CVE-2021-42376 | CVE-DB