CVE-2023-4408
CVSS 3.1 Score 7.5 of 10 (high)
Details
Published Feb 13, 2024
Updated: Apr 26, 2024
Summary
CVE-2023-4408 is a vulnerability affecting the DNS message parsing code in `named` software. This issue results in overly high computational complexity, leading to excessive CPU load when processing crafted queries and responses. Affected versions include BIND 9 from 9.0.0 through 9.19.19, and 9.9.3-S1 through 9.11.37-S1, as well as 9.16.8-S1 through 9.16.45-S1 and 9.18.11-S1 through 9.18.21-S1. Both authoritative servers and recursive resolvers are vulnerable to this issue, which can cause significant performance degradation.
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