HighFix available
squid — security advisory
The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy.. This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.. This vulnerability appears to have been fixed in 4.0.23 and later.
- Products
- squid
- Affected versions
- Not specified
- Fixed versions
- 3.5.27-r0, 3.5.27-r2
- CVEs
- CVE-2018-1000024
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 21:56 UTC · Revision 1
Source evidence
The Squid Software Foundation Squid HTTP Caching Proxy version 3.0 to 3.5.27, 4.0 to 4.0.22 contains a Incorrect Pointer Handling vulnerability in ESI Response Processing that can result in Denial of Service for all clients using the proxy.. This attack appear to be exploitable via Remote server delivers an HTTP response payload containing valid but unusual ESI syntax.. This vulnerability appears to have been fixed in 4.0.23 and later.
osv:ALPINE-CVE-2018-1000024
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r0
squid
Fixed versions: 3.5.27-r0
squid
Fixed versions: 3.5.27-r0
squid
Fixed versions: 3.5.27-r0
squid
Fixed versions: 3.5.27-r2
squid
Fixed versions: 3.5.27-r2
Complete source record
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],
"modified": "2026-10-23T17:17:55.147679530Z",
"provider": "osv",
"upstream": [
"CVE-2018-1000024"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2018-1000024"
]
},
"related_cves": [
{
"value": "CVE-2018-1000024",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 414934,
"published_at": "2018-02-09T23:29:00.73+00:00"
}