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Slackware alert SSA:2006-272-02 (openssh)

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)

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 [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/patch... Updated package for Slackware 9.0: ftp://ftp.slackware.com/pub/slackware/slackware-9.0/patch... Updated package for Slackware 9.1: ftp://ftp.slackware.com/pub/slackware/slackware-9.1/patch... Updated package for Slackware 10.0: ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patc... Updated package for Slackware 10.1: ftp://ftp.slackware.com/pub/slackware/slackware-10.1/patc... Updated package for Slackware 10.2: ftp://ftp.slackware.com/pub/slackware/slackware-10.2/patc... Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/s... 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 +------------------------------------------------------------------------+ | To leave the slackware-security mailing list: | +------------------------------------------------------------------------+ | Send an email to majordomo@slackware.com with this text in the body of | | the email message: | | | | unsubscribe slackware-security | | | | You will get a confirmation message back containing instructions to | | complete the process. Please do not reply to this email address. | +------------------------------------------------------------------------+ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.7 (GNU/Linux) iD8DBQFFHLZ+akRjwEAQIjMRAm1kAJ0XSVclfJZtJ3iy+EkLB7uMKjk9tQCfbcBN xnFTAzsFNNFyDUn9nS1A/hU= =uVXi -----END PGP SIGNATURE-----


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