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.
{
"versions": [
{
"introduced": "9.16.33"
},
{
"last_affected": "9.16.41"
},
{
"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"
}
]
}"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-2911.json"
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "11.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "12.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "37"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "38"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "11.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "12.0"
}
]
}
]