Operating System:

[Debian]

Published:

30 August 2019

Protect yourself against future threats.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

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

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

        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

- --------------------------BEGIN INCLUDED TEXT--------------------

[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

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=YiNz
-----END PGP SIGNATURE-----