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CVE-2021-42386

CVE-2021-42386

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 nvalloc function

CVSS 7.2 · High · EPSS 2.7% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • busybox

    Versions
    • ≥ unspecified, < 1.34.0: Affected (custom)

    Update to 1.34.0

  • busybox Debian:12

    Affected ranges
    • ECOSYSTEM: < 1:1.35.0-1

    Update to 1:1.35.0-1

  • busybox Debian:13

    Affected ranges
    • ECOSYSTEM: < 1:1.35.0-1

    Update to 1:1.35.0-1

  • busybox Debian:14

    Affected ranges
    • ECOSYSTEM: < 1:1.35.0-1

    Update to 1:1.35.0-1

  • busybox Ubuntu:Pro:14.04:LTS

    Versions
    • 1:1.20.0-8.1ubuntu1
    • 1:1.20.0-9ubuntu1
    • 1:1.20.0-9ubuntu2
    • 1:1.21.0-1ubuntu1
    • 1:1.21.0-1ubuntu1.4
    • 1:1.21.0-1ubuntu1.4+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • busybox Ubuntu:Pro:16.04:LTS

    Versions
    • 1:1.22.0-15ubuntu1
    • 1:1.22.0-15ubuntu1.4
    • 1:1.22.0-15ubuntu1.4+esm1
    • 1:1.22.0-15ubuntu1.4+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • busybox Ubuntu:18.04:LTS

    Versions
    • 1:1.22.0-19ubuntu2
    • 1:1.27.2-1ubuntu3
    • 1:1.27.2-1ubuntu4
    • 1:1.27.2-2ubuntu2
    • 1:1.27.2-2ubuntu3
    • 1:1.27.2-2ubuntu3.1
    • 1:1.27.2-2ubuntu3.2
    • 1:1.27.2-2ubuntu3.3
    Affected ranges
    • ECOSYSTEM: < 1:1.27.2-2ubuntu3.4

    Update to 1:1.27.2-2ubuntu3.4

  • busybox Ubuntu:20.04:LTS

    Versions
    • 1:1.30.1-4ubuntu4
    • 1:1.30.1-4ubuntu5
    • 1:1.30.1-4ubuntu6
    • 1:1.30.1-4ubuntu6.1
    • 1:1.30.1-4ubuntu6.2
    • 1:1.30.1-4ubuntu6.3
    Affected ranges
    • ECOSYSTEM: < 1:1.30.1-4ubuntu6.4

    Update to 1:1.30.1-4ubuntu6.4

  • busybox Ubuntu:22.04:LTS

    Versions
    • 1:1.30.1-6ubuntu3
    • 1:1.30.1-7ubuntu1
    Affected ranges
    • ECOSYSTEM: < 1:1.30.1-7ubuntu2

    Update to 1:1.30.1-7ubuntu2

Original sources

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