OpenSSL vulnerabilities CVE-2022-3786 and CVE-2022-3602

• 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).

• CVE-2022-3602

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 the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution.

Note: For more details about CVE-2022-3786 and CVE-2022-3602, refer to OpenSSL Security Advisory [01 November 2022].

Impact

For products with Nonein the Versions known to be vulnerable column, there is no impact.

For products with ****** in the various columns, F5 will update this article after confirming the required information. F5 Support has no additional information about this issue.