SUSE SLES11 Security Update : openssh (SUSE-SU-2016:1528-1)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote SUSE host is missing one or more security updates.

Description :

openssh was updated to fix three security issues.

These security issues were fixed :

- CVE-2016-3115: Multiple CRLF injection vulnerabilities
in session.c in sshd in OpenSSH allowed remote
authenticated users to bypass intended shell-command
restrictions via crafted X11 forwarding data, related to
the (1) do_authenticated1 and (2) session_x11_req
functions (bsc#970632).

- CVE-2016-1908: Possible fallback from untrusted to
trusted X11 forwarding (bsc#962313).

- CVE-2015-8325: Ignore PAM environment vars when
UseLogin=yes (bsc#975865).

These non-security issues were fixed :

- Correctly parse GSSAPI KEX algorithms (bsc#961368)

- More verbose FIPS mode/CC related documentation in
README.FIPS (bsc#965576, bsc#960414)

- Fix PRNG re-seeding (bsc#960414, bsc#729190)

- Disable DH parameters under 2048 bits by default and
allow lowering the limit back to the RFC 4419 specified
minimum through an option (bsc#932483, bsc#948902)

- Allow empty Match blocks (bsc#961494)

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

https://bugzilla.suse.com/729190
https://bugzilla.suse.com/932483
https://bugzilla.suse.com/948902
https://bugzilla.suse.com/960414
https://bugzilla.suse.com/961368
https://bugzilla.suse.com/961494
https://bugzilla.suse.com/962313
https://bugzilla.suse.com/965576
https://bugzilla.suse.com/970632
https://bugzilla.suse.com/975865
https://www.suse.com/security/cve/CVE-2015-8325.html
https://www.suse.com/security/cve/CVE-2016-1908.html
https://www.suse.com/security/cve/CVE-2016-3115.html
http://www.nessus.org/u?c300fb7d

Solution :

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 11-SP4 :

zypper in -t patch slessp4-openssh-12603=1

SUSE Linux Enterprise Debuginfo 11-SP4 :

zypper in -t patch dbgsp4-openssh-12603=1

To bring your system up-to-date, use 'zypper patch'.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 6.4
(CVSS2#E:U/RL:U/RC:C)
Public Exploit Available : false

Family: SuSE Local Security Checks

Nessus Plugin ID: 91655 ()

Bugtraq ID:

CVE ID: CVE-2015-8325
CVE-2016-1908
CVE-2016-3115

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