CVE-2022-38177

Name: CVE-2022-38177
Creator: NVD / NIST
Published: 2022-09-21T11:15:09.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.20%

Last modified Jun 17, 2026

CVE-2022-38177 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 2.20% chance of exploitation in the next 30 days.

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

7.5/10

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

EPSS Probability

2.20%

80.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Isc	Bind	>= 9.8.4, <= 9.16.32	—
Isc	Bind	9.9.3	S1
Isc	Bind	9.9.12	S1
Isc	Bind	9.9.13	S1
Isc	Bind	9.10.5	S1
Isc	Bind	9.10.7	S1
Isc	Bind	9.11.3	S1
Isc	Bind	9.11.5	S3
Isc	Bind	9.11.6	S1
Isc	Bind	9.11.7	S1
Isc	Bind	9.11.8	S1
Isc	Bind	9.11.12	S1
Isc	Bind	9.11.14-s1	—
Isc	Bind	9.11.19-s1	—
Isc	Bind	9.11.21	S1
Isc	Bind	9.11.27	S1
Isc	Bind	9.11.29	S1
Isc	Bind	9.11.35	S1
Isc	Bind	9.11.37	S1
Isc	Bind	9.16.8	S1
Isc	Bind	9.16.11	S1
Isc	Bind	9.16.13	S1
Isc	Bind	9.16.21	S1
Isc	Bind	9.16.32	S1
Debian	Debian Linux	10.0	—
Debian	Debian Linux	11.0	—
Fedoraproject	Fedora	35	—
Fedoraproject	Fedora	36	—
Fedoraproject	Fedora	37	—
Netapp	Active Iq Unified Manager	All versions	—

References

http://www.openwall.com/lists/oss-security/2022/09/21/3Mailing List, Patch, Third Party Advisory
https://kb.isc.org/docs/cve-2022-38177Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00007.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/
https://security.gentoo.org/glsa/202210-25Third Party Advisory
https://security.netapp.com/advisory/ntap-20221228-0010/Third Party Advisory
https://www.debian.org/security/2022/dsa-5235Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/09/21/3Mailing List, Patch, Third Party Advisory
https://kb.isc.org/docs/cve-2022-38177Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00007.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/
https://security.gentoo.org/glsa/202210-25Third Party Advisory
https://security.netapp.com/advisory/ntap-20221228-0010/Third Party Advisory
https://www.debian.org/security/2022/dsa-5235Third Party Advisory

Timeline

Published: Sep 21, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-38177?

How severe is CVE-2022-38177?

CVE-2022-38177 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.20% probability of exploitation in the next 30 days.

How do I fix CVE-2022-38177?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-38177?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST