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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.0444
                          openssh security update
                               7 April 2014

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

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

Product:           openssh
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
                   Debian GNU/Linux 6
                   Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Reduced Security -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-2653 CVE-2014-2532 

Reference:         ESB-2014.0363

Original Bulletin: 
   http://www.debian.org/security/2014/dsa-2894

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running openssh check for an updated version of the software for 
         their operating system.

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Debian Security Advisory DSA-2894-1                   security@debian.org
http://www.debian.org/security/                      Salvatore Bonaccorso
April 05, 2014                         http://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : openssh
CVE ID         : CVE-2014-2532 CVE-2014-2653
Debian Bug     : 742513

Two vulnerabilities were discovered in OpenSSH, an implementation of the
SSH protocol suite. The Common Vulnerabilities and Exposures project
identifies the following problems:

CVE-2014-2532

    Jann Horn discovered that OpenSSH incorrectly handled wildcards in
    AcceptEnv lines. A remote attacker could use this issue to trick
    OpenSSH into accepting any environment variable that contains the
    characters before the wildcard character.

CVE-2014-2653

    Matthew Vernon reported that if a SSH server offers a
    HostCertificate that the ssh client doesn't accept, then the client
    doesn't check the DNS for SSHFP records. As a consequence a
    malicious server can disable SSHFP-checking by presenting a
    certificate.

    Note that a host verification prompt is still displayed before
    connecting.

For the oldstable distribution (squeeze), these problems have been fixed in
version 1:5.5p1-6+squeeze5.

For the stable distribution (wheezy), these problems have been fixed in
version 1:6.0p1-4+deb7u1.

For the unstable distribution (sid), these problems have been fixed in
version 1:6.6p1-1.

We recommend that you upgrade your openssh packages.

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

Mailing list: debian-security-announce@lists.debian.org
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