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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: isc
Published: 2024-02-13T14:04:17.519Z
Updated: 2024-08-02T07:24:04.673Z
Reserved: 2023-08-18T07:59:28.420Z
Link: CVE-2023-4408
Vulnrichment
Updated: 2024-08-02T07:24:04.673Z
NVD
Status : Awaiting Analysis
Published: 2024-02-13T14:15:45.253
Modified: 2024-04-26T09:15:08.727
Link: CVE-2023-4408
Redhat