CVE-2023-4408

HIGH 7.5CVE-2023-4408 · Published 13/02/2024 · updated 17/06/2026

Package	Affected versions	Patched versions
bind isc	`= 9.16.11= 9.16.12= 9.16.13= 9.16.14= 9.16.21= 9.16.32= 9.16.36= 9.16.43= 9.16.8= 9.18.0= 9.18.11= 9.18.18= 9.9.3≥ 9.0.0, ≤ 9.16.45≥ 9.18.0, ≤ 9.18.21≥ 9.19.0, ≤ 9.19.19`	No fix yet
ontap netapp	`= 9.14.1= 9.15.1`	No fix yet

Description

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.

References

openwall.com/lists/oss-security/2024/02/13/1 · Mailing List
kb.isc.org/docs/cve-2023-4408 · Vendor Advisory
lists.fedoraproject.org/archives/list/[email protected]/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ · Mailing List
lists.fedoraproject.org/archives/list/[email protected]/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ · Mailing List
lists.fedoraproject.org/archives/list/[email protected]/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ · Mailing List
lists.fedoraproject.org/archives/list/[email protected]/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R · Mailing List
security.netapp.com/advisory/ntap-20240426-0001 · Third Party Advisory

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