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ALPINE-CVE-2021-42378

ALPINE-CVE-2021-42378 PUBLISHED CVSS 7.199999809265137 HIGH

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

Risk Scores

CVSS 3.1
7.199999809265137
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Alpine:v3.16busybox1.16.1-r4, 1.22.1-r10, 1.22.1-r1
Alpine:v3.21busybox1.16.0, 1.20.2-r2, 1.28.4-r0
Alpine:v3.15busybox1.18.4-r4, 1.16.0-r0, 1.16.1-r0
Alpine:v3.24busybox1.16.0
Alpine:v3.14busybox1.33.1-r5, 1.23.2-r2, 1.20.0-r5
Alpine:v3.18busybox1.16.0, 1.33.1-r5, 1.33.1-r4
Alpine:v3.20busybox1.16.0, 0, 1.12.1-r1
Alpine:v3.17busybox1.13.2-r2, 1.16.0, 1.33.1-r5
Alpine:v3.19busybox1.31.1-r8, 1.27.2-r2, 0
Alpine:v3.12busybox1.16.1-r1, 0, 1.12.1-r5
Alpine:v3.22busybox0, 1.26.1-r3, 1.31.0-r0
Alpine:v3.11busybox1.31.1-r9, 1.31.1-r8, 1.31.1-r7
Alpine:v3.13busybox1.16.0, 1.16.0-r1, 1.13.2-r3
Alpine:v3.23busybox1.24.1-r4, 1.24.1-r5, 1.24.1-r6

Timeline

  • Nov 15, 2021 CVE Published
  • Apr 30, 2026 Distribution Patch
  • Jul 8, 2026 CVE Updated
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