Description
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 hash_init function
Published: 2021-11-15
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4019-1 busybox security update
EUVD EUVD EUVD-2021-29352 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 hash_init function
Ubuntu USN Ubuntu USN USN-5179-1 BusyBox vulnerabilities
History

Mon, 03 Nov 2025 21:30:00 +0000

Type Values Removed Values Added
References

Wed, 23 Apr 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Busybox Busybox
Fedoraproject Fedora
cve-icon MITRE

Status: PUBLISHED

Assigner: JFROG

Published:

Updated: 2025-11-03T20:34:09.730Z

Reserved: 2021-10-14T00:00:00.000Z

Link: CVE-2021-42381

cve-icon Vulnrichment

Updated: 2025-11-03T20:34:09.730Z

cve-icon NVD

Status : Modified

Published: 2021-11-15T21:15:07.913

Modified: 2025-11-03T21:15:45.740

Link: CVE-2021-42381

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-11-09T00:00:00Z

Links: CVE-2021-42381 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses