If the recursive-clients quota is reached on a BIND 9 resolver configured with both stale-answer-enable yes; and stale-answer-client-timeout 0;, a sequence of serve-stale-related lookups could cause named to loop and terminate unexpectedly due to a stack overflow.
This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
{
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"last_affected": "11.0"
},
{
"last_affected": "12.0"
},
{
"last_affected": "11.0"
},
{
"last_affected": "12.0"
}
],
"source": "CPE_STRING"
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"last_affected": "37"
},
{
"last_affected": "38"
}
],
"source": "CPE_STRING"
}
]
}{
"cpe": [
"cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
"cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:*"
],
"extracted_events": [
{
"introduced": "9.16.33"
},
{
"last_affected": "9.16.41"
},
{
"introduced": "9.18.7"
},
{
"last_affected": "9.18.15"
},
{
"introduced": "9.18.11"
},
{
"last_affected": "9.18.15"
}
],
"source": "CPE_RANGE"
}{
"cpe": [
"cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*",
"cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:*"
],
"extracted_events": [
{
"introduced": "9.16.33"
},
{
"last_affected": "9.16.41"
},
{
"introduced": "9.18.7"
},
{
"last_affected": "9.18.15"
},
{
"introduced": "9.18.11"
},
{
"last_affected": "9.18.15"
}
],
"source": "CPE_RANGE"
}