Cyber Resilience

CVE-2022-38177

High

Published: 21 September 2022

Published
21 September 2022
Modified
28 May 2025
KEV Added
—
Patch
21 September 2022
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0116 79.0th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-38177 is a high-severity Missing Release of Memory after Effective Lifetime (CWE-401) vulnerability in Isc Bind. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 21.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-401

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

isc
bind
9.10.5, 9.10.7, 9.11.12, 9.11.14-s1, 9.11.19-s1 · 9.8.4 — 9.16.32
debian
debian linux
10.0, 11.0
fedoraproject
fedora
35, 36, 37
netapp
active iq unified manager
all versions

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References