[1]redhat.com [2]Home | [3]Products & Services | [4]Store | [5]Download | [6]Support ________ Search [7][LINK] [8]Product Support: Installation Support o [9]main o [10]hardware compatibility o [11]Linux tips, tricks & howtos o [12]manuals & guides o updates, fixes & errata Red Hat, Inc. Security Advisory _________________________________________________________________ Package samba _________________________________________________________________ Synopsis New Samba packages for Red Hat Linux 4.2, 5.2, 6.0 _________________________________________________________________ Advisory ID RHSA-1999:022-02 _________________________________________________________________ Issue Date 1999-07-23 _________________________________________________________________ Keywords samba smbd nmbd security _________________________________________________________________ 1. Topic: Samba 2.0.5a has been released. Among the fixes in this release are several security issues present in previous Samba releases. 2. Bug IDs fixed: 1321 2557 2625 2779 2923 2982 3715 3. Relevant releases/architectures: Red Hat Linux 6.0, all architectures 4. Obsoleted by: None 5. Conflicts with: The smbmount code shipped with Samba 2.0 is only compatible with the Linux 2.2 kernel, so it has not been built for the Red Hat Linux 4.2 and 5.2 releases. If smbmount support for the 2.2 kernel is needed under Red Hat Linux 4.2 or 5.2, the source RPM can be rebuilt with the following command line (RPM version 3.0 is required): rpm --define "KERN22 yes" --rebuild samba-2.0.5a-.src.rpm The samba package shipped with Red Hat Linux 6.0 (samba-2.0.3-8) has an erroneous post-uninstall script. If this package is upgraded to the errata release, it could cause /var/log/samba and /var/lock/samba to be missing. It is recommended that users of samba under Red Hat Linux 6.0 uninstall the previous release using 'rpm -e samba' before installing the errata release. 6. RPMs required: Intel: [13]ftp://updates.redhat.com/6.0/i386/ [14]samba-2.0.5a-1.i386.rpm [15]samba-client-2.0.5a-1.i386.rpm Alpha: [16]ftp://updates.redhat.com/6.0/alpha/ [17]samba-2.0.5a-1.alpha.rpm [18]samba-client-2.0.5a-1.alpha.rpm SPARC: [19]ftp://updates.redhat.com/6.0/sparc/ [20]samba-2.0.5a-1.sparc.rpm [21]samba-client-2.0.5a-1.sparc.rpm Source: [22]ftp://updates.redhat.com/6.0/SRPMS [23]samba-2.0.5a-1.src.rpm 7. Problem description: Several security issues were present in earlier samba releases. - a denial-of-service attack could be performed against nmbd. - a buffer overflow was present in the message service in smbd (not enabled by default under Red Hat Linux) - a race condition was present in smbmnt that could cause problems if installed setuid root (it is not installed setuid root by default under Red Hat Linux 6.0, and is not present under Red Hat Linux 4.2 or 5.2) Thanks go to Olaf Kirch (okir@caldera.de) for discovering the security holes, as well as the Samba team. 8. Solution: Install the updated RPMs, and restart the affected services by running: /etc/rc.d/init.d/smb restart For each RPM for your particular architecture, run: rpm -Uvh filename where filename is the name of the RPM. 9. Verification: MD5 sum Package Name ------------------------------------------------------------------------- 5167d97fb2f0949991555a3b8e86d509 samba-2.0.5a-1.i386.rpm 969d609925bc09f9c113907124828dc6 samba-client-2.0.5a-1.i386.rpm d8091f3fa0aeda8febf3553d5b92f53f samba-2.0.5a-1.alpha.rpm 99f334ef87347877d1b79d4801044547 samba-client-2.0.5a-1.alpha.rpm 58b1afe4c81028435e6cad1325d4bbee samba-2.0.5a-1.sparc.rpm 6e3939fcebba7ace639b766b1cf36cab samba-client-2.0.5a-1.sparc.rpm 5c87d78148a8a224e5f89e5dce9af1ae samba-2.0.5a-1.src.rpm These packages are also PGP signed by Red Hat Inc. for security. Our key is available at: [24]http://www.redhat.com/corp/contact.html You can verify each package with the following command: rpm --checksig If you only wish to verify that each package has not been corrupted o tampered with, examine only the md5sum with the following command: rpm --checksig --nopgp 10. References: <19990721023513Z12865037-4222+1570@samba.anu.edu.au> _________________________________________________________________ [25]Home | [26]Products & Services | [27]Store | [28]Download | [29]Product Support [30]Partners & Programs | [31]Community Center | [32]News & Views | [33]Application Marketplace [34]Knowledgebase | [35]Legal Statement | [36]Privacy Statement | [37]Y2K Statement | [38]Join | [39]Feedback copyright © 1999 Red Hat, Inc. All rights reserved. References 1. http://www.redhat.com/index.html 2. http://www.redhat.com/index.html 3. http://www.redhat.com/products/ 4. http://www.redhat.com/commerce/ 5. http://www.redhat.com/download/ 6. http://www.redhat.com/support/ 7. http://ad.doubleclick.net/jump/www.redhat.com/;sz=234x60;ord=N7vzy8e3GIUAAGBeDYI 8. http://www.redhat.com/support/ 9. http://www.redhat.com/cgi-bin/support#install 10. http://www.redhat.com/corp/support/hardware/index.html 11. http://www.redhat.com/corp/support/docs/index.html 12. http://www.redhat.com/corp/support/manuals/index.html 13. ftp://updates.redhat.com/6.0/i386/ 14. ftp://updates.redhat.com/6.0/i386/samba-2.0.5a-1.i386.rpm 15. ftp://updates.redhat.com/6.0/i386/samba-client-2.0.5a-1.i386.rpm 16. ftp://updates.redhat.com/6.0/alpha/ 17. ftp://updates.redhat.com/6.0/alpha/samba-2.0.5a-1.alpha.rpm 18. ftp://updates.redhat.com/6.0/alpha/samba-client-2.0.5a-1.alpha.rpm 19. ftp://updates.redhat.com/6.0/sparc/ 20. ftp://updates.redhat.com/6.0/sparc/samba-2.0.5a-1.sparc.rpm 21. ftp://updates.redhat.com/6.0/sparc/samba-client-2.0.5a-1.sparc.rpm 22. ftp://updates.redhat.com/6.0/SRPMS/ 23. ftp://updates.redhat.com/6.0/SRPMS/samba-2.0.5a-1.src.rpm 24. http://www.redhat.com/corp/contact.html 25. http://www.redhat.com/index.html 26. http://www.redhat.com/products/ 27. http://www.redhat.com/commerce/ 28. http://www.redhat.com/download/ 29. http://www.redhat.com/cgi-bin/support/ 30. http://www.redhat.com/partners/ 31. http://www.redhat.com/community/ 32. http://www.redhat.com/news/ 33. http://www.redhat.com/appindex/ 34. http://www.redhat.com/knowledgebase/ 35. http://www.redhat.com/legal/legal_statement.html 36. http://www.redhat.com/legal/privacy_statement.html 37. http://www.redhat.com/legal/legal_statement.html#y2k 38. http://www.redhat.com/join/ 39. http://www.redhat.com/feedback.html