HighFix available
apache2 — security advisory
A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability.
- Products
- apache2
- Affected versions
- Not specified
- Fixed versions
- 2.4.33-r0
- CVEs
- CVE-2018-1303
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 21:57 UTC · Revision 1
Source evidence
A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability.
osv:ALPINE-CVE-2018-1303
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
apache2
Fixed versions: 2.4.33-r0
Complete source record
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],
"modified": "2026-10-23T17:17:55.211380778Z",
"provider": "osv",
"upstream": [
"CVE-2018-1303"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2018-1303"
]
},
"related_cves": [
{
"value": "CVE-2018-1303",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415028,
"published_at": "2018-03-26T15:29:00.523+00:00"
}