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IBM AIX: openssl_advisory37 (CVE-2022-3786): Vulnerabilities in OpenSSL affect AIX

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IBM AIX: openssl_advisory37 (CVE-2022-3786): Vulnerabilities in OpenSSL affect AIX

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/01/2022
Created
07/27/2023
Added
07/27/2023
Modified
01/26/2024

Description

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.

Solution(s)

  • ibm-aix-openssl_advisory37

References

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