CVE-2022-38177

HIGH

BIND >=9.8.4 <9.16.32 - Use-After-Free via Malformed ECDSA Signature

Title source: llm
STIX 2.1

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.

References (9)

Core 9
Core References
Patch, Third Party Advisory
https://kb.isc.org/docs/cve-2022-38177
Mailing List, Patch, Third Party Advisory mailing-list
http://www.openwall.com/lists/oss-security/2022/09/21/3
Third Party Advisory vendor-advisory
https://www.debian.org/security/2022/dsa-5235
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/10/msg00007.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202210-25

Scores

CVSS v3 7.5
EPSS 0.0116
EPSS Percentile 78.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (30)
debian/debian_linux 10.0
debian/debian_linux 11.0
fedoraproject/fedora 35
fedoraproject/fedora 36
fedoraproject/fedora 37
isc/bind 9.9.3 s1 (2 CPE variants)
isc/bind 9.9.12 s1
isc/bind 9.9.13 s1
isc/bind 9.10.5 s1
isc/bind 9.10.7 s1
... and 20 more
Published Sep 21, 2022
Tracked Since Feb 18, 2026