A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service.
{
"unresolved_ranges": [
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "6.0"
}
]
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "7.0"
}
]
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "8.0"
}
]
},
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*",
"extracted_events": [
{
"last_affected": "9.0"
}
]
}
]
}{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "6.4"
}
]
}