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.
Affected products
isc: bind; debian: debian linux; fedoraproject: fedora; netapp: active iq unified manager
References10
- www.openwall.com/lists/oss-security/2022/09/21/3 Mailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/09/21/3 Mailing ListPatchThird Party Advisory
- kb.isc.org/docs/cve-2022-38178 Mailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/10/msg00007.html Mailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.…
- lists.fedoraproject.org/archives/list/package-announce%40lists.…
- lists.fedoraproject.org/archives/list/package-announce%40lists.…
- security.gentoo.org/glsa/202210-25 Third Party Advisory
- security.netapp.com/advisory/ntap-20221228-0009/ Third Party Advisory
- www.debian.org/security/2022/dsa-5235 Third Party Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 3% percentile: 88 · as of 12 November 2026
- CWE
- CWE-401
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.