Vulnerability identifier: #VU68896

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-3786

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
OpenSSL
Server applications / Encryption software

Vendor: OpenSSL Software Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when processing the email address field length inside a X.509 certificate. A remote attacker can supply a specially crafted certificate to the application, trigger a buffer overflow and crash the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenSSL: 3.0.0 - 3.0.6

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CPE

• cpe:2.3:a:openssl_software_foundation:openssl:3.0.6:*:*:*:*:*:*:*

External links
http://www.openssl.org/news/secadv/20221101.txt

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?