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From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] openssh (SSA:2006-272-02)
Date: Fri, 29 Sep 2006 00:57:38 -0700 (PDT)
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[slackware-security]  openssh (SSA:2006-272-02)

New openssh packages are available for Slackware 8.1, 9.0, 9.1, 10.0, 10.1,
10.2, and -current to fix security issues.

More details about these issues may be found in the Common
Vulnerabilities and Exposures (CVE) database:

  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4924
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5051
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5052


Here are the details from the Slackware 10.2 ChangeLog:
+--------------------------+
patches/packages/openssh-4.4p1-i486-1_slack10.2.tgz:
  Upgraded to openssh-4.4p1.
  This fixes a few security related issues.  From the release notes found at
  http://www.openssh.com/txt/release-4.4:
    * Fix a pre-authentication denial of service found by Tavis Ormandy,
      that would cause sshd(8) to spin until the login grace time
      expired.
    * Fix an unsafe signal hander reported by Mark Dowd. The signal
      handler was vulnerable to a race condition that could be exploited
      to perform a pre-authentication denial of service. On portable
      OpenSSH, this vulnerability could theoretically lead to
      pre-authentication remote code execution if GSSAPI authentication
      is enabled, but the likelihood of successful exploitation appears
      remote.
    * On portable OpenSSH, fix a GSSAPI authentication abort that could
      be used to determine the validity of usernames on some platforms.
  Links to the CVE entries will be found here:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4924
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5051
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5052
    After this upgrade, make sure the permissions on /etc/rc.d/rc.sshd are set
  the way you want them.  Future upgrades will respect the existing permissions
  settings.  Thanks to Manuel Reimer for pointing out that upgrading openssh
  would enable a previously disabled sshd daemon.
    Do better checking of passwd, shadow, and group to avoid adding
    redundant entries to these files.  Thanks to Menno Duursma.
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

HINT:  Getting slow download speeds from ftp.slackware.com?
Give slackware.osuosl.org a try.  This is another primary FTP site
for Slackware that can be considerably faster than downloading
from ftp.slackware.com.

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating additional FTP and rsync hosting
to the Slackware project!  :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 8.1:
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/packages/openssh-4.4p1-i386-1_slack8.1.tgz

Updated package for Slackware 9.0:
ftp://ftp.slackware.com/pub/slackware/slackware-9.0/patches/packages/openssh-4.4p1-i386-1_slack9.0.tgz

Updated package for Slackware 9.1:
ftp://ftp.slackware.com/pub/slackware/slackware-9.1/patches/packages/openssh-4.4p1-i486-1_slack9.1.tgz

Updated package for Slackware 10.0:
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/openssh-4.4p1-i486-1_slack10.0.tgz

Updated package for Slackware 10.1:
ftp://ftp.slackware.com/pub/slackware/slackware-10.1/patches/packages/openssh-4.4p1-i486-1_slack10.1.tgz

Updated package for Slackware 10.2:
ftp://ftp.slackware.com/pub/slackware/slackware-10.2/patches/packages/openssh-4.4p1-i486-1_slack10.2.tgz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/openssh-4.4p1-i486-1.tgz



MD5 signatures:
+-------------+

Slackware 8.1 package:
0a42fb286fd722f019dfc5f167d69ced  openssh-4.4p1-i386-1_slack8.1.tgz

Slackware 9.0 package:
92563664845d902251d7b19254b3dda1  openssh-4.4p1-i386-1_slack9.0.tgz

Slackware 9.1 package:
5814a00eefa0b1e1fe7673862525788e  openssh-4.4p1-i486-1_slack9.1.tgz

Slackware 10.0 package:
24ce8b2013b8759a173e5ccd7db54289  openssh-4.4p1-i486-1_slack10.0.tgz

Slackware 10.1 package:
e7950e6a357871092514ce07051f055e  openssh-4.4p1-i486-1_slack10.1.tgz

Slackware 10.2 package:
b8d2d67276a662de40d6adf9bfe00bce  openssh-4.4p1-i486-1_slack10.2.tgz

Slackware -current package:
6f2c30b503db9685180af6f4a87eadcc  openssh-4.4p1-i486-1.tgz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg openssh-4.4p1-i486-1_slack10.2.tgz

If you are running an sshd daemon, restart it:

sh /etc/rc.d/rc.sshd restart


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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