The DNS message parsing code in named includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected named instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers.
This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
{
"unresolved_ranges": [
{
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"introduced": "38"
},
{
"last_affected": "38"
},
{
"introduced": "39"
},
{
"last_affected": "39"
}
],
"source": "CPE_STRING",
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*"
]
},
{
"vendor_product": "isc:bind",
"extracted_events": [
{
"introduced": "9.16.8-s1"
},
{
"last_affected": "9.16.8-s1"
},
{
"introduced": "9.16.8-s1"
},
{
"last_affected": "9.16.8-s1"
},
{
"introduced": "9.16.11-s1"
},
{
"last_affected": "9.16.11-s1"
},
{
"introduced": "9.16.11-s1"
},
{
"last_affected": "9.16.11-s1"
},
{
"introduced": "9.16.12-s1"
},
{
"last_affected": "9.16.12-s1"
},
{
"introduced": "9.16.12-s1"
},
{
"last_affected": "9.16.12-s1"
},
{
"introduced": "9.16.13-s1"
},
{
"last_affected": "9.16.13-s1"
},
{
"introduced": "9.16.13-s1"
},
{
"last_affected": "9.16.13-s1"
},
{
"introduced": "9.16.14-s1"
},
{
"last_affected": "9.16.14-s1"
},
{
"introduced": "9.16.14-s1"
},
{
"last_affected": "9.16.14-s1"
},
{
"introduced": "9.16.21-s1"
},
{
"last_affected": "9.16.21-s1"
},
{
"introduced": "9.16.21-s1"
},
{
"last_affected": "9.16.21-s1"
},
{
"introduced": "9.16.32-s1"
},
{
"last_affected": "9.16.32-s1"
},
{
"introduced": "9.16.32-s1"
},
{
"last_affected": "9.16.32-s1"
},
{
"introduced": "9.16.36-s1"
},
{
"last_affected": "9.16.36-s1"
},
{
"introduced": "9.16.36-s1"
},
{
"last_affected": "9.16.36-s1"
},
{
"introduced": "9.16.43-s1"
},
{
"last_affected": "9.16.43-s1"
},
{
"introduced": "9.16.43-s1"
},
{
"last_affected": "9.16.43-s1"
},
{
"introduced": "9.18.0-s1"
},
{
"last_affected": "9.18.0-s1"
},
{
"introduced": "9.18.0-s1"
},
{
"last_affected": "9.18.0-s1"
},
{
"introduced": "9.18.11-s1"
},
{
"last_affected": "9.18.11-s1"
},
{
"introduced": "9.18.11-s1"
},
{
"last_affected": "9.18.11-s1"
},
{
"introduced": "9.18.18-s1"
},
{
"last_affected": "9.18.18-s1"
},
{
"introduced": "9.18.18-s1"
},
{
"last_affected": "9.18.18-s1"
}
],
"cpes": [
"cpe:2.3:a:isc:bind:9.16.11:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.12:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.14:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.21:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.32:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.36:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.43:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.8:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.18.0:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.18.11:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.18.18:s1:*:*:supported_preview:*:*:*"
],
"source": "CPE_STRING"
},
{
"vendor_product": "netapp:ontap",
"extracted_events": [
{
"introduced": "9.14.1"
},
{
"last_affected": "9.14.1"
},
{
"introduced": "9.15.1"
},
{
"last_affected": "9.15.1"
}
],
"source": "CPE_STRING",
"cpes": [
"cpe:2.3:a:netapp:ontap:9.14.1:*:*:*:*:*:*:*",
"cpe:2.3:a:netapp:ontap:9.15.1:*:*:*:*:*:*:*"
]
}
]
}{
"cpe": [
"cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
"cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*"
],
"source": [
"CPE_RANGE",
"CPE_STRING"
],
"extracted_events": [
{
"introduced": "9.0.0"
},
{
"last_affected": "9.16.45"
},
{
"introduced": "9.18.0"
},
{
"last_affected": "9.18.21"
},
{
"introduced": "9.19.0"
},
{
"last_affected": "9.19.19"
},
{
"introduced": "9.9.3-s1"
},
{
"last_affected": "9.9.3-s1"
}
]
}{
"cpe": [
"cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
"cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*"
],
"source": [
"CPE_RANGE",
"CPE_STRING"
],
"extracted_events": [
{
"introduced": "9.0.0"
},
{
"last_affected": "9.16.45"
},
{
"introduced": "9.18.0"
},
{
"last_affected": "9.18.21"
},
{
"introduced": "9.19.0"
},
{
"last_affected": "9.19.19"
},
{
"introduced": "9.9.3-s1"
},
{
"last_affected": "9.9.3-s1"
}
]
}