CVE-2022-38178 - Improper Verification of Cryptographic Signature

Severity

75%

Complexity

39%

Confidentiality

60%

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.

CVSS 3.1 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Demo Examples

Improper Verification of Cryptographic Signature

CWE-347

In the following code, a JarFile object is created from a downloaded file.


               
JarFile jf = new JarFile(f);

The JAR file that was potentially downloaded from an untrusted source is created without verifying the signature (if present). An alternate constructor that accepts a boolean verify parameter should be used instead.

Overview

First reported 2 years ago

2022-09-21 11:15:00

Last updated 2 years ago

2022-12-28 16:15:00

Affected Software

ISC BIND

ISC BIND 9.11.7 S1 Supported Preview Edition

9.11.7

ISC BIND 9.11.3 S1 Supported Preview Edition

9.11.3

ISC BIND 9.11.6 S1 Supported Preview Edition

9.11.6

ISC BIND 9.11.5 S5 Supported Preview Edition

9.11.5

ISC BIND 9.11.5 S3 Supported Preview Edition

9.11.5

ISC BIND 9.11.5 S3 for Supported Preview

9.11.5
supported_preview

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