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.

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.

Security update for dovecot23

dovecot: improper NULL byte handling in IMAP and ManageSieve protocol parsers leads to out of bounds writes

Security update for dovecot22

Affected: Ubuntu:Pro:14.04:LTS: dovecot, Ubuntu:16.04:LTS: dovecot, Ubuntu:18.04:LTS: dovecot

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.

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Dovecot ausnutzen, um beliebigen Programmcode mit den Rechten des Dienstes auszuführen oder um Informationen offenzulegen.