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CVE-2022-38177

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CVE-2022-38177

Published: Sep 21, 2022

Modified: May 28, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

VendorProductVersions

ISC

BIND9

affected
Open Source Branches 9.8 through 9.16 9.8.4 through versions before 9.16.33
affected
Supported Preview Branches 9.9-S through 9.11-S 9.9.4-S1 through versions up to and including 9.11.37-S1
affected
Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.33-S1

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

DSA-5235
vendor-advisory
FEDORA-2022-ef038365de
vendor-advisory
FEDORA-2022-8268735e06
vendor-advisory
FEDORA-2022-b197d64471
vendor-advisory
GLSA-202210-25
vendor-advisory

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