CVE-2022-3786

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

CVSS v3.0 7.5 HIGH

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.openssl.org/news/secadv/20221101.txt	Vendor Advisory
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c42165b5706e42f67ef8ef4c351a9a4c5d21639a	Patch Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:36:::::::*
	cpe:2.3:o:fedoraproject:fedora:37:::::::*

Configuration 3 (hide)

OR	cpe:2.3:a:nodejs:node.js:19.0.0::::-:::
	cpe:2.3:a:nodejs:node.js:18.12.0::::lts:::
	cpe:2.3:a:nodejs:node.js:::::-:::*

Information

Published : 2022-11-01 11:15

Updated : 2023-01-19 07:47

NVD link : CVE-2022-3786

Mitre link : CVE-2022-3786

JSON object : View

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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Products Affected

nodejs

node.js

openssl

openssl

fedoraproject

fedora

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