__________________________________________________________ The U.S. Department of Energy Cyber Incident Response Capability __ __ __ ___ __ __ ___ ___ | \ | | |_ __ / | |__| / |__/ |__| |__ \___ __|__ | \ \___ __________________________________________________________ INFORMATION BULLETIN libxml2 Vulnerability [Debian Security Advisory DSA-1654-1] October 29, 2008 18:00 GMT Number T-019 ______________________________________________________________________________ PROBLEM: It was discovered that libxml2, the GNOME XML library, didn't correctly handle long entity names. This could allow the execution of arbitrary code via a malicious XML file. PLATFORM: Debian GNU/Linux 4.0 (etch) DAMAGE: Execution of arbitrary code. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Coercing a user to open a specially crafted ASSESSMENT: XML file, could allow an intruder to run arbitrary code with the permissions of the user. ______________________________________________________________________________ CVSS 2 BASE SCORE: 3.5 TEMPORAL SCORE: 2.7 VECTOR: (AV:L/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C) ______________________________________________________________________________ LINKS: DOE-CIRC BULLETIN: http://doecirc.energy.gov/ciac/bulletins/t-019.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2008/dsa-1654 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2008-3529 ______________________________________________________________________________ [***** Start Debian Security Advisory DSA-1654-1 *****] Debian Security Advisory DSA-1654-1 libxml2 -- buffer overflow Date Reported: 14 Oct 2008 Affected Packages: libxml2 Vulnerable: Yes Security database references: In the Debian bugtracking system: Bug 498768. In Mitre's CVE dictionary: CVE-2008-3529. More information: It was discovered that libxml2, the GNOME XML library, didn't correctly handle long entity names. This could allow the execution of arbitrary code via a malicious XML file. For the stable distribution (etch), this problem has been fixed in version 2.6.27.dfsg-5. For the unstable distribution (sid), this problem has been fixed in version 2.6.32.dfsg-4. We recommend that you upgrade your libxml2 package. Fixed in: Debian GNU/Linux 4.0 (etch) Source: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5.diff.gz http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg.orig.tar.gz http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5.dsc Architecture-independent component: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-doc_2.6.27.dfsg-5_all.deb Alpha: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_alpha.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_alpha.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_alpha.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_alpha.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_alpha.deb AMD64: http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_amd64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_amd64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_amd64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_amd64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_amd64.deb ARM: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_arm.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_arm.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_arm.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_arm.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_arm.deb HP Precision: http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_hppa.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_hppa.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_hppa.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_hppa.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_hppa.deb Intel IA-32: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_i386.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_i386.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_i386.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_i386.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_ia64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_ia64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_ia64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_ia64.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_ia64.deb Big-endian MIPS: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_mips.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_mips.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_mips.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_mips.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_mips.deb Little-endian MIPS: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_mipsel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_mipsel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_mipsel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_mipsel.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_powerpc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_powerpc.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_powerpc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_powerpc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_s390.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_s390.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_s390.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_s390.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.27.dfsg-5_sparc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.27.dfsg-5_sparc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.27.dfsg-5_sparc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.27.dfsg-5_sparc.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.27.dfsg-5_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1654-1 *****] _______________________________________________________________________________ DOE-CIRC wishes to acknowledge the contributions of Debian for the information contained in this bulletin. _______________________________________________________________________________ DOE-CIRC provides the U.S. Department of Energy with incident response, reporting, and tracking, along with other computer security support. DOE-CIRC is a member of GFIRST, the Government Forum of Incident Responders and Security Teams and FIRST an international incident response and security organization. DOE-CIRC services are available to DOE and DOE contractors. DOE-CIRC can be contacted at: Voice: +1 866-941-2472 (7x24) FAX: +1 702-932-0189 STU-III: Call the voice number. E-mail: doecirc@doecirc.energy.gov Previous DOE-CIRC notices, anti-virus software, and other information are available from the DOE-CIRC Computer Security Archive. World Wide Web: http://www.doecirc.energy.gov/ PLEASE NOTE: Many users outside of the DOE and ESnet computing communities receive DOE-CIRC 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 DOE-CIRC. 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 any agency thereof, 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 product, 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 any agency thereof. The views and opinions of originators expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. LAST 10 DOE-CIRC Bulletins S-213: Nukedit 'email' Parameter Vulnerability S-214: SurgeMail and WebMail 'Page' Command Vulnerability S-215: Symantec Backup Exec Scheduler ActiveX Control Multiple Vulnerabilities S-216: Juniper Networks Secure Access 2000 'rdremediate.cgi' Vulnerability S-217: Drupal Multiple HTML Vulnerabilities S-218: gd Security Update S-219: Juniper Networks Secure Access 2000 Web Root Path Vulnerability S-220: PHP-Nuke My_eGallery Module 'gid' Parameter Vulnerability S-221: Learn2 STRunner ActiveX Control Vulnerabilities S-222: Evolution Security Update