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Use After Free Affecting busybox package, versions <1.31.1-r21

0.0
high

Snyk CVSS

    Attack Complexity Low
    Privileges Required High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.24% (62nd percentile)
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NVD
7.2 high
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SUSE
6.6 medium
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Red Hat
6.6 medium

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  • Snyk ID SNYK-ALPINE312-BUSYBOX-1920731
  • published 12 Nov 2021
  • disclosed 15 Nov 2021
Report a new vulnerability Found a mistake?

Introduced: 12 Nov 2021

CVE-2021-42378 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Alpine:3.12 busybox to version 1.31.1-r21 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Alpine. See How to fix? for Alpine:3.12 relevant fixed versions and status.

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_i function