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CVE-2023-4408

Parsing large DNS messages may cause excessive CPU load PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
ISC / BIND 9affected 9.0.0 through 9.16.45; affected 9.18.0 through 9.18.21; affected 9.19.0 through 9.19.19; affected 9.9.3-S1 through 9.11.37-S1; affected 9.16.8-S1 through 9.16.45-S1; affected 9.18.11-S1 through 9.18.21-S1

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.