Memory leak in ECDSA DNSSEC verification code
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 3.2%
exploitation probability
3.2%top 13% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
ISC · BIND9References
https://kb.isc.org/docs/cve-2022-38177https://lists.debian.org/debian-lts-announce/2022/10/msg00007.htmlhttps://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/202210-25https://security.netapp.com/advisory/ntap-20221228-0010/https://www.debian.org/security/2022/dsa-5235http://www.openwall.com/lists/oss-security/2022/09/21/3