NetSight
IP …
high7.5

CVE-2023-4408

The DNS message parsing code in `named` includes a section whose computational complexity is overly high.

Impact

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.

Affected products

VendorProductAffected versions
NetappOntap
Versions 9.14.1, 9.15.1
FedoraprojectFedora
Versions 38, 39
IscBind
from 9.0.0 through 9.16.45
from 9.18.0 through 9.18.21
from 9.19.0 through 9.19.19
Versions 9.9.3, 9.16.8, 9.16.11

Weakness classification

CWE-407

References