Debian Security Advisory

DLA-1901-1 dovecot -- LTS security update

Date Reported:
29 Aug 2019
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2019-11500.
More information:

Nick Roessler and Rafi Rubin discovered that the IMAP and ManageSieve protocol parsers in the Dovecot email server do not properly validate input (both pre- and post-login). A remote attacker can take advantage of this flaw to trigger out of bounds heap memory writes, leading to information leaks or potentially the execution of arbitrary code.

For Debian 8 Jessie, this problem has been fixed in version 1:2.2.13-12~deb8u7.

We recommend that you upgrade your dovecot packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: