Yellow Dog Linux Security Announcement -------------------------------------- Package: fetchmail Issue Date: July 25, 2001 Priority: high Advisory ID: YDU-20010725-21 1. Topic: The fetchmail software has a buffer overflow. 2. Problem: A buffer overflow was discovered in all version of the fetchmail software prior to 5.8.6. This can be exploited remotely and result in a root access compromise if fetchmail is being run as root. 3. Solution: a) Updating via yup... We suggest that you use the Yellow Dog Update Program (yup) to keep your system up-to-date. The following command(s) will automatically retrieve and install the fixed version of this update onto your system: yup update fetchmail yup update fetchmailconf b) Updating manually... The update can also be retrieved manually from our ftp site below along with the rpm command that should be used to install the update. (Please use a mirror site) ftp://ftp.yellowdoglinux.com/pub/yellowdog/updates/yellowdog-2.0/ppc/RPMS/ rpm -Fvh fetchmail-5.8.14-1.ppc.rpm rpm -Fvh fetchmailconf-5.8.14-1.ppc.rpm 4. Verification MD5 checksum Package -------------------------------- ---------------------------- 50703b423ce7a5e1a89ed7ebfcba01eb SRPMS/fetchmail-5.8.14-1.src.rpm 77e18a8c627a2c68fb3c538d981b8224 ppc/RPMS/fetchmail-5.8.14-1.ppc.rpm 01cb03fd338e8771b06e40c945e1bb22 ppc/RPMS/fetchmailconf-5.8.14-1.ppc.rpm If you wish to verify that each package has not been corrupted or tampered with, examine the md5sum with the following command: rpm --checksig --nogpg filename 5. Misc. Terra Soft has setup a moderated mailing list where these security, bugfix, and package enhancement announcements will be posted. See http://lists.yellowdoglinux.com/ for more information. For information regarding the usage of yup, the Yellow Dog Update Program, see http://http://www.yellowdoglinux.com/support/solutions/ydl_general/yup.shtml