MediumFix available
zsh — security advisory
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service.
- Products
- zsh
- Affected versions
- Not specified
- Fixed versions
- 5.2-r2, 5.2-r4, 5.3.1-r1, 5.4.2-r1
- CVEs
- CVE-2018-1071
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 21:56 UTC · Revision 1
Source evidence
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service.
osv:ALPINE-CVE-2018-1071
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.2-r2
zsh
Fixed versions: 5.2-r4
zsh
Fixed versions: 5.3.1-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
zsh
Fixed versions: 5.4.2-r1
Complete source record
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"modified": "2026-10-23T17:17:55.170597571Z",
"provider": "osv",
"upstream": [
"CVE-2018-1071"
],
"references": [
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]
},
"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": 414959,
"published_at": "2018-03-09T15:29:00.267+00:00"
}