CVE-2022-38177

HighCVSS 7.5/10Last modified Sep 1, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-401

Affected software

VendorProductVersions
ISCBIND9Open Source Branches 9.8 through 9.16 9.8.4 through versions before 9.16.33; Supported Preview Branches 9.9-S through 9.11-S 9.9.4-S1 through versions up to and including 9.11.37-S1; Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1

References

Timeline

Published
Sep 21, 2022
Last modified
Sep 1, 2026
NVD status
Modified

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CVE-2022-38177: High severity, CVSS 7.5 | Vulnix