Back to Database
Status published
High
CVE-2022-38178
Memory leaks in EdDSA DNSSEC verification code
Vulnerability Description
By spoofing the target resolver with responses that have a malformed EdDSA 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2022-38178
Credits & Attribution
No credits recorded in the NVD database.
References
- https://kb.isc.org/docs/cve-2022-38178
- http://www.openwall.com/lists/oss-security/2022/09/21/3
- https://www.debian.org/security/2022/dsa-5235
- 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://lists.debian.org/debian-lts-announce/2022/10/msg00007.html
- https://security.gentoo.org/glsa/202210-25
- https://security.netapp.com/advisory/ntap-20221228-0009/
More from ISC
View All →CVE-2025-8696
DoS attack against the Stork UI from an unauthenticated user
High
7.5
CVE-2025-8677
Resource exhaustion via malformed DNSKEY handling
High
7.5
CVE-2025-40780
Cache poisoning due to weak PRNG
High
8.6
CVE-2025-40779
Kea crash upon interaction between specific client options and subnet selection
High
7.5
CVE-2025-40778
Cache poisoning attacks with unsolicited RRs
High
8.6
Affected Vendor
Affected Software
BIND9
Vulnerable Versions:
Open Source Branch 9.9 9.9.12 through versions up to and including 9.9.13, Open Source Branch 9.10 9.10.7 through versions up to and including 9.10.8, Open Source Branches 9.11 through 9.16 9.11.3 through versions before 9.16.33, Open Source Branch 9.18 9.18.0 through versions before 9.18.7, Supported Preview Branch 9.11-S 9.11.4-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, Development Branch 9.19 9.19.0 through versions before 9.19.5
Timeline
Official Publish:
September 21st, 2022
Last Modified:
May 28th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.