CVE-2023-4408
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Isc Bind
PublishedFeb 13, 2024
First seenFeb 13, 2024
Weakness typeCWE-407CWE-407
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| isc bind | 9.0.0 ≤ v ≤ 9.16.45, 9.18.0 ≤ v ≤ 9.18.21, 9.19.0 ≤ v ≤ 9.19.19, 9.9.3, 9.16.8, 9.16.11, 9.16.12, 9.16.13, 9.16.14, 9.16.21, 9.16.32, 9.16.36, 9.16.43, 9.18.0, 9.18.11, 9.18.18 | — |
| netapp ontap | 9.14.1, 9.15.1 | — |
| fedoraproject fedora | 38, 39 | — |
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