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SAMBA Update for SUSE
Posted by Philipp Esselbach on: 11/15/2004 03:47 PM [ Print | 0 comment(s) ]
A SAMBA update is available for SUSE Linux ______________________________________________________________________________ SUSE Security Announcement Package: samba Announcement-ID: SUSE-SA:2004:040 Date: Monday, Nov 15th 2004 18:00 MEST Affected products: 9.1, 9.2 SUSE Linux Enterprise Server 9 Novell Linux Desktop 9 Vulnerability Type: potential remote buffer overflow remote denial of service Severity (1-10): 7 SUSE default package: yes Cross References: CAN-2004-0930 CAN-2004-0882 Content of this advisory: 1) security vulnerabilities resolved: - remote buffer overflow and remote denial of service conditions in Samba 3 packages. problem description 2) solution/workaround 3) special instructions and notes 4) package location and checksums 5) pending vulnerabilities, solutions, workarounds: - bogofilter - libxml2 - clamav - various PDF viewers - mozilla /tmp issues - sharutils - phpMyAdmin - gaim - sysconfig - perl-MIME-Tools, perl-Archive-ZIP - apache / mod_include - apache2 / mod_SSL 6) standard appendix (further information)
______________________________________________________________________________ 1) problem description, brief discussion There is a problem in the Samba file sharing service daemon, which allows a remote user to have the service consume lots of computing power and potentially crash the service by querying special wildcarded filenames. This attack can be successful if the Samba daemon is running and a remote user has access to a share (even read only). The Samba team has issued the new Samba version 3.0.8 to fix this problem, this update backports the relevant patch. This issue has been assigned the Mitre CVE ID CAN-2004-0930. Stefan Esser found a problem in the Unicode string handling in the Samba file handling which could lead to a remote heap buffer overflow and might allow remote attackers to inject code in the smbd process. This issue has been assigned the Mitre CVE ID CAN-2004-0882. We provide updated packages for both these problems. The Samba version 2 packages are not affected by this problem. 2) solution/workaround Update to the released packages. The only workaround would be not to use Samba. 3) special instructions and notes Restart the Samba daemon by entering the following command as root: rcsmb try-restart 4) package location and checksums Download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered for installation from the maintenance web. x86 Platform: SUSE Linux 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/samba-3.0.7-5.2.i586.rpm ea47b14d991eadfc8319d248441eb6cc patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/samba-3.0.7-5.2.i586.patch.rpm 097048624c2ca75d66113c994e278bf8 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/samba-3.0.7-5.2.src.rpm e90db6a68fca1660ecb1f3e833034b14 SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/samba-3.0.4-1.34.3.i586.rpm 2701bcc3f8a702828a84ca6ee6f58c47 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/samba-3.0.4-1.34.3.i586.patch.rpm 2ec25548844d0741ece92ea34726b962 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/samba-3.0.4-1.34.3.src.rpm ce60179f36ea0005df7c69b64849b387 x86-64 Platform: SUSE Linux 9.2: ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/samba-3.0.7-5.2.x86_64.rpm 13b65db6a9cd46df94cd5171d4c3b916 patch rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/samba-3.0.7-5.2.x86_64.patch.rpm 0e7dd46cc7187ae3a7419dfdb8cdd1b8 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/src/samba-3.0.7-5.2.src.rpm e90db6a68fca1660ecb1f3e833034b14 SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/samba-3.0.4-1.34.3.x86_64.rpm 8b442529ac042ecea469972c2c85e4b5 patch rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/samba-3.0.4-1.34.3.x86_64.patch.rpm f3c95f1940f05652393a178b6a12e226 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/samba-3.0.4-1.34.3.src.rpm 053403aa610ea0df5b6337934e753acc ______________________________________________________________________________ 5) Pending vulnerabilities in SUSE Distributions and Workarounds: A lot of less important issues have been addressed since the last security update. To avoid spamming they are summarized here. - bogofilter The bogofilter team has notified us about a denial of service condition in bogofilter on SUSE Linux 9.2, where a non-conformant encoded word could lead to a denial of service attack against bogofilter. This issue has been assigned Mitre CVE ID CAN-2004-1007. Fixed packages are available. - libxml2 Several buffer overflows in URL handling in libxml2 were found by "infamous41md". This issue has been assigned the Mitre CVE ID CAN-2004-0989. Fixed packages are available. - clamav The clamav version shipped with SUSE Linux is too old for the new data files. The version has been upgraded to 0.80. - various xpdf based PDF viewers The SUSE QA team found several 64-bit issues in the xpdf fixes we released for CAN-2004-0888 and CAN-2004-0889. These have been fixed and updated packages have been released. - Mozilla /tmp issues The creation of several /tmp files in Mozilla and Mozilla based programs left private files with world readable permissions so that local users could read documents of other users. Packages fixing this problem have been released. - sharutils Buffer overflows and shell quoting problems have been found in the "shar" program which creates self-extracting shell archives. Fixed packages are available. - phpMyAdmin Missing parameter escapes allowed users of the phpMyAdmin frontend to execute commands as the www user on the target host. Fixed packages are available. - gaim More problems in newer versions of GAIM have been found and are tracked with the Mitre CVE ID CAN-2004-0891. Fixed packages are available. - sysconfig A permission error left the passphrase of WPA authorized wireless key world readable in SUSE Linux 9.2. Fixed packages are available. - perl-Mime-Tools / perl-Archive-ZIP Problems in the perl-MIME-Tools and perl-Archive-ZIP packages have been found which could allow virii to pass virus scanners using those packages (like for instance clamav). Fixed packages are in testing and will be released soon. - Apache 1.3 / mod_include A potential buffer overflow and a argument sanitization problem were found in the mod_include Apache 1.3 module. These issues are tracked as CAN-2004-0940 and CAN-2004-0492 by Mitre CVE. Fixed packages are in testing and will be released soon. - Apache 2 / mod_SSL SSL Ciphersuite bypass problems were identified and fixed by the Apache team in Apache 2. This is tracked under the Mitre CVE ID CAN-2004-0885. Fixed packages are in testing and will be released soon. ______________________________________________________________________________ 6) standard appendix: authenticity verification, additional information - Package authenticity verification: SUSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SUSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key firstname.lastname@example.org), the checksums show proof of the authenticity of the package. We recommend against subscribing to security lists that cause the e-mail message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the file name of the rpm package that you have downloaded. Of course, package authenticity verification can only target an uninstalled rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SUSE in rpm packages for SUSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SUSE Linux distributions version 7.1 and thereafter install the key "email@example.com" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the top-level directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SUSE runs two security mailing lists to which any interested party may subscribe: firstname.lastname@example.org - general/linux/SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an email to <email@example.com>. firstname.lastname@example.org - SUSE's announce-only mailing list. Only SUSE's security announcements are sent to this list. To subscribe, send an email to <email@example.com>. For general information or the frequently asked questions (faq) send mail to: <firstname.lastname@example.org> or <email@example.com> respectively. ==================================================================== SUSE's security contact is <firstname.lastname@example.org> or <email@example.com>. The <firstname.lastname@example.org> public key is listed below. ==================================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the clear-text signature shows proof of the authenticity of the text. SUSE Linux AG makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <email@example.com> pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <firstname.lastname@example.org> -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.0.7 (GNU/Linux) mQENAzbhLQQAAAEIAKAkXHe0lWRBXLpn38hMHy03F0I4Sszmoc8aaKJrhfhyMlOA BqvklPLE2f9UrI4Xc860gH79ZREwAgPt0pi6+SleNFLNcNFAuuHMLQOOsaMFatbz JR9i4m/lf6q929YROu5zB48rBAlcfTm+IBbijaEdnqpwGib45wE/Cfy6FAttBHQh 1Kp+r/jPbf1mYAvljUfHKuvbg8t2EIQz/5yGp+n5trn9pElfQO2cRBq8LFpf1l+U P7EKjFmlOq+Gs/fF98/dP3DfniSd78LQPq5vp8RL8nr/o2i7jkAQ33m4f1wOBWd+ cZovrKXYlXiR+Bf7m2hpZo+/sAzhd7LmAD0l09kABRG0JVN1U0UgU2VjdXJpdHkg VGVhbSA8c2VjdXJpdHlAc3VzZS5kZT6JARUDBRA24S1H5Fiyh7HKPEUBAVcOB/9b yHYji1/+4Xc2GhvXK0FSJN0MGgeXgW47yxDL7gmR4mNgjlIOUHZj0PEpVjWepOJ7 tQS3L9oP6cpj1Fj/XxuLbkp5VCQ61hpt54coQAvYrnT9rtWEGN+xmwejT1WmYmDJ xG+EGBXKr+XP69oIUl1E2JO3rXeklulgjqRKos4cdXKgyjWZ7CP9V9daRXDtje63 Om8gwSdU/nCvhdRIWp/Vwbf7Ia8iZr9OJ5YuQl0DBG4qmGDDrvImgPAFkYFzwlqo choXFQ9y0YVCV41DnR+GYhwl2qBd81T8aXhihEGPIgaw3g8gd8B5o6mPVgl+nJqI BkEYGBusiag2pS6qwznZiQEVAwUQNuEtBHey5gA9JdPZAQFtOAf+KVh939b0J94u v/kpg4xs1LthlhquhbHcKNoVTNspugiC3qMPyvSX4XcBr2PC0cVkS4Z9PY9iCfT+ x9WM96g39dAF+le2CCx7XISk9XXJ4ApEy5g4AuK7NYgAJd39PPbERgWnxjxir9g0 Ix30dS30bW39D+3NPU5Ho9TD/B7UDFvYT5AWHl3MGwo3a1RhTs6sfgL7yQ3U+mvq MkTExZb5mfN1FeaYKMopoI4VpzNVeGxQWIz67VjJHVyUlF20ekOz4kWVgsxkc8G2 saqZd6yv2EwqYTi8BDAduweP33KrQc4KDDommQNDOXxaKOeCoESIdM4p7Esdjq1o L0oixF12CohGBBARAgAGBQI7HmHDAAoJEJ5A4xAACqukTlQAoI4QzP9yjPohY7OU F7J3eKBTzp25AJ42BmtSd3pvm5ldmognWF3Trhp+GYkAlQMFEDe3O8IWkDf+zvyS FQEBAfkD/3GG5UgJj18UhYmh1gfjIlDcPAeqMwSytEHDENmHC+vlZQ/p0mT9tPiW tp34io54mwr+bLPN8l6B5GJNkbGvH6M+mO7R8Lj4nHL6pyAv3PQr83WyLHcaX7It Klj371/4yzKV6qpz43SGRK4MacLo2rNZ/dNej7lwPCtzCcFYwqkiiEYEEBECAAYF AjoaQqQACgkQx1KqMrDf94ArewCfWnTUDG5gNYkmHG4bYL8fQcizyA4An2eVo/n+ 3J2KRWSOhpAMsnMxtPbBiEYEExECAAYFAkGJG+YACgkQGsiRhDTRlzm8CQCg14Wz vg6j45e/r1oyt9EaHhleSacAnA+2dArk1I3xt49Z5rdnhqheF//9mQGiBDnu9IER BACT8Y35+2vv4MGVKiLEMOl9GdST6MCkYS3yEKeueNWc+z/0Kvff4JctBsgs47tj miI9sl0eHjm3gTR8rItXMN6sJEUHWzDP+Y0PFPboMvKx0FXl/A0dM+HFrruCgBlW t6FA+okRySQiliuI5phwqkXefl9AhkwR8xocQSVCFxcwvwCglVcOQliHu8jwRQHx lRE0tkwQQI0D+wfQwKdvhDplxHJ5nf7U8c/yE/vdvpN6lF0tmFrKXBUX+K7u4ifr ZlQvj/81M4INjtXreqDiJtr99Rs6xa0ScZqITuZC4CWxJa9GynBED3+D2t1V/f8l 0smsuYoFOF7Ib49IkTdbtwAThlZp8bEhELBeGaPdNCcmfZ66rKUdG5sRA/9ovnc1 krSQF2+sqB9/o7w5/q2qiyzwOSTnkjtBUVKn4zLUOf6aeBAoV6NMCC3Kj9aZHfA+ ND0ehPaVGJgjaVNFhPi4x0e7BULdvgOoAqajLfvkURHAeSsxXIoEmyW/xC1sBbDk DUIBSx5oej73XCZgnj/inphRqGpsb+1nKFvF+rQoU3VTRSBQYWNrYWdlIFNpZ25p bmcgS2V5IDxidWlsZEBzdXNlLmRlPohcBBMRAgAcBQI57vSBBQkDwmcABAsKAwQD FQMCAxYCAQIXgAAKCRCoTtronIAKyl8sAJ98BgD40zw0GHJHIf6dNfnwI2PAsgCg jH1+PnYEl7TFjtZsqhezX7vZvYCIRgQQEQIABgUCOnBeUgAKCRCeQOMQAAqrpNzO AKCL512FZvv4VZx94TpbA9lxyoAejACeOO1HIbActAevk5MUBhNeLZa/qM2JARUD BRA6cGBvd7LmAD0l09kBATWnB/9An5vfiUUE1VQnt+T/EYklES3tXXaJJp9pHMa4 fzFa8jPVtv5UBHGee3XoUNDVwM2OgSEISZxbzdXGnqIlcT08TzBUD9i579uifklL snr35SJDZ6ram51/CWOnnaVhUzneOA9gTPSr+/fT3WeVnwJiQCQ30kNLWVXWATMn snT486eAOlT6UNBPYQLpUprF5Yryk23pQUPAgJENDEqeU6iIO9Ot1ZPtB0lniw+/ xCi13D360o1tZDYOp0hHHJN3D3EN8C1yPqZd5CvvznYvB6bWBIpWcRgdn2DUVMmp U661jwqGlRz1F84JG/xe4jGuzgpJt9IXSzyohEJB6XG5+D0BiF0EExECAB0FAjxq qTQFCQoAgrMFCwcKAwQDFQMCAxYCAQIXgAAKCRCoTtronIAKyp1fAJ9dR7saz2KP NwD3U+fy/0BDKXrYGACfbJ8fQcJqCBQxeHvt9yMPDVq0B0W5Ag0EOe70khAIAISR 0E3ozF/la+oNaRwxHLrCet30NgnxRROYhPaJB/Tu1FQokn2/Qld/HZnh3TwhBIw1 FqrhWBJ7491iAjLR9uPbdWJrn+A7t8kSkPaF3Z/6kyc5a8fas44ht5h+6HMBzoFC MAq2aBHQRFRNp9Mz1ZvoXXcI1lk1l8OqcUM/ovXbDfPcXsUVeTPTtGzcAi2jVl9h l3iwJKkyv/RLmcusdsi8YunbvWGFAF5GaagYQo7YlF6UaBQnYJTM523AMgpPQtsK m9o/w9WdgXkgWhgkhZEeqUS3m5xNey1nLu9iMvq9M/iXnGz4sg6Q2Y+GqZ+yAvNW jRRou3zSE7Bzg28MI4sAAwYH/2D71Xc5HPDgu87WnBFgmp8MpSr8QnSs0wwPg3xE ullGEocolSb2c0ctuSyeVnCttJMzkukL9TqyF4s/6XRstWirSWawJxRLKH6Zjo/F aKsshYKf8gBkAaddvpl3pO0gmUYbqmpQ3xDEYlhCeieXS5MkockQ1sj2xYdB1xO0 ExzfiCiscUKjUFy+mdzUsUutafuZ+gbHog1CN/ccZCkxcBa5IFCHORrNjq9pYWlr xsEn6ApsG7JJbM2besW1PkdEoxak74z1senh36m5jQvVjA3U4xq1wwylxadmmJaJ HzeiLfb7G1ZRjZTsB7fyYxqDzMVul6o9BSwO/1XsIAnV1uuITAQYEQIADAUCOe70 kgUJA8JnAAAKCRCoTtronIAKyksiAJsFB3/77SkH3JlYOGrEe1Ol0JdGwACeKTtt geVPFB+iGJdiwQlxasOfuXyITAQYEQIADAUCPGqpWQUJCgCCxwAKCRCoTtronIAK yofBAKCSZM2UFyta/fe9WgITK9I5hbxxtQCfX+0ar2CZmSknn3coSPihn1+OBNw =Fv2n -----END PGP PUBLIC KEY BLOCK-----