-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: ypserv prior 1.3.9 Date: Tue Sep 28 08:38:50 CEST 1999 Affected: all linux distributions using the ypserv package ______________________________________________________________________________ A security hole was discovered in the package mentioned above. Please update as soon as possible or disable the service if you are using this software on your SuSE Linux installation(s). Other Linux distributions or operating systems might be affected as well, please contact your vendor for information about this issue. Please note, that that we provide this information on "as-is" basis only. There is no warranty whatsoever and no liability for any direct, indirect or incidental damage arising from this information or the installation of the update package. _____________________________________________________________________________ 1. Problem Description The package ypserv is the former "yellow pages", now called NIS information service, which is used for e.g. central network user account management. Several vulnerability exists: ypserv prior 1.3.9 allows an administrator in the NIS domain to inject password tables; rpc.yppasswd prior 1.3.6.92 has got a buffer overflow in the md5 hash generation [SuSE linux is unaffected by this, other linux falvors are]; rpc.yppasswdd prior 1.3.9 allows users to change GECO and login shell values of other users. 2. Impact If administrator access to one server in the NIS domain is compromised, access to the whole domain can be achieved. On some linux distributions other than SuSE, The rpc.yppasswdd service may halt unexpectedly. It is theoretically possible to execute arbitary code on these systems too. User information can be changed and restricted accounts opened. 3. Solution Updated the package from our FTP server. ______________________________________________________________________________ Here are the md5 checksums of the upgrade packages, please verify these before installing the new packages: abe34d8d1831550059b3fad160fe41f5 ypserv-1.3.9-0.i386.rpm (6.1) 6937d10896d2b5beb18471491ca57781 ypserv-1.3.9-0.alpha.rpm (AXP) 19472f128099cb1e311f2db247acd39f ypserv-1.3.9-0.i386.rpm (6.2) For SuSE 6.0 users: please use the 6.1 version. ______________________________________________________________________________ You will find the update on our ftp-Server: ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/ypserv-1.3.9-0.i386.rpm ftp://ftp.suse.com/pub/suse/axp/update/6.1/n1/ypserv-1.3.9-0.alpha.rpm ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/ypserv-1.3.9-0.i386.rpm Webpage for patches: http://www.suse.de/patches/index.html or try the following web pages for a list of mirrors: http://www.suse.de/ftp.html http://www.suse.com/ftp_new.html ______________________________________________________________________________ SuSE has got two free security mailing list services to which any interested party may subscribe: use-security@suse.com - moderated and for general/linux/SuSE security discussions. All SuSE security announcements are send to this list. use-security-announce@suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe to the list, send a message to: <suse-security-subscribe@suse.com> To remove your address from the list, send a message to: <suse-security-unsubscribe@suse.com> Send mail to the following for info and FAQ for this list: <suse-security-info@suse.com> <suse-security-faq@suse.com> _____________________________________________________________________________ If you want to report *NEW* security bugs in the SuSE Linux Distribution please send an email to security@suse.de or call our support line. You may use pgp with the public key below to ensure confidentiality. ______________________________________________________________________________ This information is provided freely to everyone interested and may be redistributed provided that it is not altered in any way. Type Bits/KeyID Date User ID pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security@suse.de> - ------BEGIN PGP PUBLIC KEY BLOCK----- Version: 2.6.3i 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 L0oixF12Cg== =pIeS - ------END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv iQEVAwUBOBM0THey5gA9JdPZAQGWwQf8DugF4RIQ9PMp+rotjwV6vD6X1dbemRhE AifZLPsmrwNIUmkZH7LLDd2FeI5v8tYrJPIQhYsQox7AiRsyEBIX15KFqZb0zfJW QX/wYeXsj4XIp3qgX/D6/Y+WR926h19RUTB5rIqCJKDfhh6gbghdvVc26iPzL4ok UtWUdbSrdIDGRsCt44er24raSGv/GF6zgMbn92pQwoIPE8XRH59KNSxSErG8PKYH waGhjkedIaQPYoaB1EiHUUxKg6qNC6qdLKoOzDcyPqD4LnbQ/ggfYmaxFHY2A/wC 17jXcxwduarLjMOKyTnM7zKvY6YCOtU9jXlgjOR+z0x270YOmopF0g== =YliV -----END PGP SIGNATURE-----