In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.
No PoCs from references.
- https://github.com/KeerthiYasasvi/Honeypot-Data-Analysis-using-T-pot
- https://github.com/Linathimqalo/cloud-honeypot-analysis