-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SuSE Security Announcement Package: gdm <= 2.0beta4-25 Date: Wed May 24 08:35:39 CET 2000 Affected SuSE versions: 6.2-6.4 Vulnerability Type: remote compromise SuSE default package: no Other affected systems: all linux systems using gdm <= 2.0beta4 ______________________________________________________________________________ A security hole was discovered in the package mentioned above. Please update it 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 we provide this information on an "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 GNOME package includes a xdm replacement called gdm for handling graphical console and network logins. The gdm code, that process' logins over the network, could be tricked into writing data from the network right into the stack. This condition exists while gdm is running with root privileges and before the user is authenticated. 2. Impact An remote adversary could crash gdm or execute his own code, which leads to root compromise of the system running gdm. 3. Solution By default gdm doesn't accept login connection from the network. Older SuSE releases, which include gdm 1.x, allow network logins by default but aren't vulnerable by this bug. If you need the network login feature of gdm, update the package from our FTP server, please. ______________________________________________________________________________ Please verify these md5 checksums of the updates before installing: (For SuSE 6.0, please use the 6.1 updates) AXP: ffb656afe38ee6e5c04789f8fce8b1a8 ftp://ftp.suse.com/pub/suse/axp/update/6.3/gnm2/gdm-2.0beta4-74.alpha.rpm f5c7bf9b8fd133e74481ecd6c0d5678e ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/gdm-2.0beta4-74.src.rpm 928d262fd9e8f1ff40e6f84b560daf7b ftp://ftp.suse.com/pub/suse/axp/update/6.4/gnm2/gdm-2.0beta4-74.alpha.rpm 6f8a0cc01b9b37f5d6b7bf93b138afb2 ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/gdm-2.0beta4-74.src.rpm i386: 8a8adfa55587b1db0cf9816e7d8839c6 ftp://ftp.suse.com/pub/suse/i386/update/6.2/gnm2/gdm-2.0beta4-72.i386.rpm fea8fda701692bea4fb658edc7a504ea ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/gdm-2.0beta4-72.src.rpm be26d14f8693d50002a5462c28a45d5a ftp://ftp.suse.com/pub/suse/i386/update/6.3/gnm2/gdm-2.0beta4-72.i386.rpm bcc226af12ce171d4aa41c6d490d2b8f ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/gdm-2.0beta4-72.src.rpm 372583d0633d4d0115e6f3bc8397cf16 ftp://ftp.suse.com/pub/suse/i386/update/6.4/gnm2/gdm-2.0beta4-72.i386.rpm 33896dd68321aa45c837da34547debf5 ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/gdm-2.0beta4-72.src.rpm <p>______________________________________________________________________________ You can find updates on our ftp-Server: ftp://ftp.suse.com/pub/suse/i386/update for Intel processors ftp://ftp.suse.com/pub/suse/axp/update for Alpha processors or try the following web pages for a list of mirrors: http://www.suse.de/ftp.html http://www.suse.com/ftp_new.html Our webpage for patches: http://www.suse.de/patches/index.html Our webpage for security announcements: http://www.suse.de/security If you want to report vulnerabilities, please contact security@suse.de ______________________________________________________________________________ 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 sent 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> _____________________________________________________________________________ This information is provided freely to everyone interested and may be redistributed provided that it is not altered in any way. 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