HighFix available
busybox — security advisory
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 handle_special function
- Products
- busybox
- Affected versions
- Not specified
- Fixed versions
- 1.31.1-r11, 1.31.1-r21, 1.32.1-r7, 1.33.1-r6, 1.34.0-r0
- CVEs
- CVE-2021-42384
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:07 UTC · Revision 1
Source evidence
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 handle_special function
osv:ALPINE-CVE-2021-42384
busybox
Fixed versions: 1.31.1-r11
busybox
Fixed versions: 1.31.1-r21
busybox
Fixed versions: 1.32.1-r7
busybox
Fixed versions: 1.33.1-r6
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
busybox
Fixed versions: 1.34.0-r0
Complete source record
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"severity": "high",
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],
"modified": "2026-10-23T17:17:56.220435422Z",
"provider": "osv",
"upstream": [
"CVE-2021-42384"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2021-42384"
]
},
"related_cves": [
{
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"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415583,
"published_at": "2021-11-15T21:15:08.07+00:00"
}