CVE-2022-38177

Memory leak in ECDSA DNSSEC verification code

State: Published
Severity: 7.5 High
Published: Sep 21, 2022
Updated: May 28, 2025
Reserved: Aug 12, 2022

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	isc

Weaknesses

CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

Product	Versions
BIND9ISC	Open Source Branches 9.8 through 9.16 9.8.4 through versions before 9.16.33Affected Supported Preview Branches 9.9-S through 9.11-S 9.9.4-S1 through versions up to and including 9.11.37-S1Affected Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1Affected

References

https://kb.isc.org/docs/cve-2022-38177
[oss-security] 20220921 ISC has disclosed six vulnerabilities in BIND (CVE-2022-2795, CVE-2022-2881, CVE-2022-2906, CVE-2022-3080, CVE-2022-38177, CVE-2022-38178)mailing-list
DSA-5235vendor-advisory
FEDORA-2022-ef038365devendor-advisory
FEDORA-2022-8268735e06vendor-advisory
FEDORA-2022-b197d64471vendor-advisory
[debian-lts-announce] 20221005 [SECURITY] [DLA 3138-1] bind9 security updatemailing-list
GLSA-202210-25vendor-advisory
https://security.netapp.com/advisory/ntap-20221228-0010/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.