Vulnerabilities > CVE-2023-26432 - Unspecified vulnerability in Open-Xchange Appsuite Backend

Summary

When adding an external mail account, processing of SMTP "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue SMTP service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now limit accepted SMTP server response to reasonable length/size. No publicly available exploits are known.

Vulnerable Configurations

References