CVE-2022-38178
HIGH severity · CVSS 7.5 · CWE-401
7.5CVSS HIGH
Summary
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 & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)3%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (3)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://www.openwall.com/lists/oss-security/2022/09/21/3 ↗
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2022/09/21/3Patch
- https://kb.isc.org/docs/cve-2022-38178Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00007.htmlAdvisory
- 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/202210-25Advisory
- https://security.netapp.com/advisory/ntap-20221228-0009/Advisory