ESB-2017.2419 - [Debian] samba: Multiple vulnerabilities 2017-09-25

Printable version
PGP/GPG verifiable version

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

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

                               ESB-2017.2419
                           samba security update
                             25 September 2017

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

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

Product:           samba
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   Debian GNU/Linux 9
Impact/Access:     Access Privileged Data         -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-12163 CVE-2017-12151 CVE-2017-12150

Reference:         ESB-2017.2398

Original Bulletin: 
   http://www.debian.org/security/2017/dsa-3983

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

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

- - -------------------------------------------------------------------------
Debian Security Advisory DSA-3983-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
September 22, 2017                    https://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : samba
CVE ID         : CVE-2017-12150 CVE-2017-12151 CVE-2017-12163

Multiple security issues have been discoverd in Samba, a SMB/CIFS file,
print, and login server for Unix:

CVE-2017-12150

    Stefan Metzmacher discovered multiple code paths where SMB signing
    was not enforced.

CVE-2017-12151

    Stefan Metzmacher discovered that tools using libsmbclient did not
    enforce encryption when following DFS redirects, which could allow a
    man-in-the-middle attacker to read or modify connections which were
    meant to be encrypted.

CVE-2017-12163

    Yihan Lian and Zhibin Hu discovered that insufficient range checks
    in the processing of SMB1 write requests could result in disclosure
    of server memory.

For the oldstable distribution (jessie), these problems have been fixed
in version 2:4.2.14+dfsg-0+deb8u8.

For the stable distribution (stretch), these problems have been fixed in
version 2:4.5.8+dfsg-2+deb9u2.

We recommend that you upgrade your samba packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
- -----BEGIN PGP SIGNATURE-----
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=6qlh
- -----END PGP SIGNATURE-----

- --------------------------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:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
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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=ulUk
-----END PGP SIGNATURE-----

« Back to bulletins