_____________________________________________________________________________________________ TurboLinux Security Announcement Package: xntp3 Vulnerable Packages: All Turbolinux versions previous to 5.93-10 Date: 05/02/2001 5:00 PDT Affected TurboLinux versions: TL Server 6.5, TL 6.1 WorkStation, All TurboLinux versions 6.0.5 and earlier TurboLinux Advisory ID#: TLSA2001014 Credits: Vulnerability discovered by Przemyslaw Frasunek References: http://www.securityfocus.com/vdb/bottom.html?vid=2540 _____________________________________________________________________________________________ A security hole has been discovered in the xntp3 packages. Please update the packages in your installation as soon as possible. _____________________________________________________________________________________________ 1. Problem Summary A remote buffer overflow vulnerability exists in the network time protocol daemon. It is remotely exploitable and a user with malicious intent can crash the daemon or execute arbitrary code on the affected host. 2. Impact Remote exploitation can result in an attacker gaining remote root access or a denial of ntp service on the affected system. 3. Solution Update the packages from our ftp server by running the following command: rpm -Uvh ftp_path_to_filename Where ftp_path_to_filename is the following: ftp://ftp.turbolinux.com/pub/updates/6.0/security/xntp3-5.93-10.i386.rpm ftp://ftp.turbolinux.com/pub/updates/6.0/security/xntp3-server-5.93-10.i386.rpm The source RPM can be downloaded here: ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/xntp3-5.93-10.src.rpm **Note: You must rebuild and install the RPM if you choose to download and install the SRPM. Simply installing the SRPM alone WILL NOT CLOSE THE SECURITY HOLE. Please verify the MD5 checksums of the updates before you install: MD5 sum Package Name --------------------------------------------------------------------------------------------- 1acc3320414d9cf0c95359ee441f670c xntp3-5.93-10.i386.rpm dfb4610caddfe8970e7c9f37c4fc9ec7 xntp3-server-5.93-10.i386.rpm b68734be1f493230aa773f19a0bfb0b5 xntp3-5.93-10.src.rpm _____________________________________________________________________________________________ These packages are GPG signed by TurboLinux for security. Our key is available here: http://www.turbolinux.com/security/tlgpgkey.asc To verify a package, use the following command: rpm --checksig name_of_rpm To examine only the md5sum, use the following command: rpm --checksig --nogpg name_of_rpm **Note: Checking GPG keys requires RPM 3.0 or higher. ________________________________________________________________________________________________ You can find more updates on our ftp server: ftp://ftp.turbolinux.com/pub/updates/6.0/security/ for TL6.0 Workstation and Server security updates Our webpage for security announcements: http://www.turbolinux.com/security If you want to report vulnerabilities, please contact: security@turbolinux.com ________________________________________________________________________________________________ Subscribe to the TurboLinux Security Mailing lists: TL-security - A moderated list for discussing security issues TurboLinux products. Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security TL-security-announce - An announce-only mailing list for security updates and alerts. Subscribe at: http://www.turbolinux.com/mailman/listinfo/tl-security-announce