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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3290
                   [DLA 1901-1] dovecot security update
                              30 August 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           dovecot
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-11500  

Reference:         ESB-2019.3269
                   ESB-2019.3261

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2019/08/msg00035.html

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[DLA 1901-1] dovecot security update

Package        : dovecot
Version        : 1:2.2.13-12~deb8u7
CVE ID         : CVE-2019-11500

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: https://wiki.debian.org/LTS

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===========================================================================
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