CVE-2022-38177 (GCVE-0-2022-38177)
Vulnerability from cvelistv5
Published
2022-09-21 10:15
Modified
2025-05-28 15:23
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • In BIND 9.8.4 -> 9.16.32 and versions 9.9.4-S1 -> 9.11.37-S1, 9.16.8-S1 -> 9.16.32-S1 of the BIND Supported Preview Edition, the DNSSEC verification code for the ECDSA algorithm leaks memory when there is a signature length mismatch.
Summary
By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
References
Impacted products
Vendor Product Version
ISC BIND9 Version: Open Source Branches 9.8 through 9.16 9.8.4 through versions before 9.16.33
Version: Supported Preview Branches 9.9-S through 9.11-S 9.9.4-S1 through versions up to and including 9.11.37-S1
Version: Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1
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