__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Red Hat Updated Metamail Packages Fix Vulnerabilities [RHSA-2004:073-07] February 19, 2004 14:00 GMT Number O-083 [REVISED 26 Feb 2004] [REVISED 27 Feb 2004] ______________________________________________________________________________ PROBLEM: There are two integer overflow bugs and two buffer overflow bugs in versions of Metamail up to and including 2.7. PLATFORM: Red Hat Enterprise Linux AS (v.2.1) Red Hat Enterprise Linux ES (v.2.1) Red Hat Enterprise Linux WS (v.2.1) Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor Debian GNU/Linux 3.0 (woody) SGI ProPack v2.4 and v2.3 for the Altix family of systems DAMAGE: An attacker could create a carefully-crafted message such that when it is opened by a victim and parsed through Metamail, it runs arbitrary code as the victim. SOLUTION: Install the appropriate upgrade. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. An unauthorized attacker could run ASSESSMENT: arbitrary code as the victim. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/o-083.shtml ORIGINAL BULLETIN: Red Hat RHSA-2004:073-05 https://rhn.redhat.com/errata/RHSA-2004-073.html ADDITIONAL LINKS: Debian Security Advisory DSA-449-1 http://www.debian.org/security/2004/dsa-449 SGI Security Advisory Number 20040203-01-U ftp://patches.sgi.com/support/free/security/advisories/ 20040203-01-U.asc CVE/CAN: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CAN-2004-0104 CAN-2004-0105 ______________________________________________________________________________ REVISION HISTORY: 02/26/04 - Added a link to Debian Security Advisory DSA-449-1. 02/27/04 - Added a link to SGI Advanced Linux Environment Security Update #12 Security Advisory Number 20040203-01-U. [***** Start RHSA-2004:073-07 *****] Updated metamail packages fix vulnerabilities Advisory: RHSA-2004:073-07 Last updated on: 2004-02-18 Affected Products: Red Hat Enterprise Linux AS (v. 2.1) Red Hat Enterprise Linux ES (v. 2.1) Red Hat Enterprise Linux WS (v. 2.1) Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor CVEs (cve.mitre.org): CAN-2004-0104 CAN-2004-0105 Security Advisory Details: Updated metamail packages that fix a number of vulnerabilities are now available. Metamail is a system for handling multimedia mail. Ulf Harnhammar discovered two format string bugs and two buffer overflow bugs in versions of Metamail up to and including 2.7. An attacker could create a carefully-crafted message such that when it is opened by a victim and parsed through Metamail, it runs arbitrary code as the victim. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CAN-2004-0104 (format strings) and CAN-2004-0105 (buffer overflows) to these issues. Users of Red Hat Enterprise Linux 2.1 are advised to upgrade to these erratum packages, which contain a backported security patch and are not vulnerable to these issues. Please note that Red Hat Enterprise Linux 3 does not contain Metamail and is therefore not vulnerable to these issues. Red Hat would like to thank Ulf Harnhammar for the notification and patch for these issues. Updated packages: Red Hat Enterprise Linux AS (v. 2.1) -------------------------------------------------------------------------------- SRPMS: metamail-2.7-29.src.rpm 388b3a4bf5f803f0820c71509b8982e4 i386: metamail-2.7-29.i386.rpm f556e3b720166ff08b8822ebbd0d563d ia64: metamail-2.7-29.ia64.rpm 53eaa8eb8ef21233ba4124d095ce37c5 Red Hat Enterprise Linux ES (v. 2.1) -------------------------------------------------------------------------------- SRPMS: metamail-2.7-29.src.rpm 388b3a4bf5f803f0820c71509b8982e4 i386: metamail-2.7-29.i386.rpm f556e3b720166ff08b8822ebbd0d563d Red Hat Enterprise Linux WS (v. 2.1) -------------------------------------------------------------------------------- SRPMS: metamail-2.7-29.src.rpm 388b3a4bf5f803f0820c71509b8982e4 i386: metamail-2.7-29.i386.rpm f556e3b720166ff08b8822ebbd0d563d Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor -------------------------------------------------------------------------------- SRPMS: metamail-2.7-29.src.rpm 388b3a4bf5f803f0820c71509b8982e4 ia64: metamail-2.7-29.ia64.rpm 53eaa8eb8ef21233ba4124d095ce37c5 (The unlinked packages above are only available from the Red Hat Network) Solution Before applying this update, make sure all previously released errata relevant to your system have been applied. To update all RPMs for your particular architecture, run: rpm -Fvh [filenames] where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs. Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. If up2date fails to connect to Red Hat Network due to SSL Certificate Errors, you need to install a version of the up2date client with an updated certificate. The latest version of up2date is available from the Red Hat FTP site and may also be downloaded directly from the RHN website: https://rhn.redhat.com/help/latest-up2date.pxt Bugs fixed: (see bugzilla for more information) 115804 - CAN-2004-0104/0105 Metamail vulnerabilities References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0104 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0105 http://marc.theaimsgroup.com/?l=bugtraq&m=107713476911429 -------------------------------------------------------------------------------- The listed packages are GPG signed by Red Hat, Inc. for security. Our key is available at: http://www.redhat.com/solutions/security/news/publickey/#key You can verify each package and see who signed it with the following command: rpm --checksig -v filename If you only wish to verify that each package has not been corrupted or tampered with, examine only the md5sum with the following command: md5sum filename The Red Hat security contact is security@redhat.com. More contact details at http://www.redhat.com/solutions/security/news/contact.html [***** End RHSA-2004:073-07 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Red Hat for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) O-073: Check Point VPN-1 Server and VPN Client Buffer Overflow Vulnerability O-074: Red Hat Cross-site Scripting Vulnerability in Mailman Package O-075: RealPlayer / RealOne Player Buffer Overrun Vulnerabilities O-076: MS Vulnerability in Virtual PC for Mac O-077: MS Vulnerability in the Windows Internet Naming Service (WINS) O-078: Samba - Unauthorized Access to SMB Accounts O-079: SGI - Userland Binary Vulnerabilities O-080: Novell iChain Telnet Service Vulnerability O-081: Red Hat Updated XFree86 Packages Fix Privilege Escalation Vulnerability O-082: Red Hat Updated Kernel Packages Resolve Security Vulnerabilities