__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN texinfo Buffer Overflow [DSA-1219-1] November 30, 2006 18:00 GMT Number R-059 ______________________________________________________________________________ PROBLEM: Multiple vulnerabilities have been found in the GNU texinfo package. PLATFORM: For the stable distribution (sarge fixed in version 4.7-2.2sarge2 For unstable (sid) and the upcoming stable release (etch), fixed in version 4.8.dfsg.1-4 DAMAGE: Handling of temporary files is performed in an insecure manner, allowing an attacker to overwrite any file writable by the victim. Also, a buffer overflow in util/texindex.c could allow an attacker to execute arbitrary code with the victim's access rights by inducing the victim to run texindex or tex2dvi on a specially crafted texinfo file. SOLUTION: Apply current patches. ______________________________________________________________________________ VULNERABILITY The risk is LOW. The worst of which could allow an attacker to ASSESSMENT: execute arbitrary code with the victim's access rights. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-059.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2006/dsa-1219 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2005-3011 CVE-2006-4810 ______________________________________________________________________________ [***** Start DSA-1219-1 *****] Debian Security Advisory DSA-1219-1 texinfo -- buffer overflow Date Reported: 27 Nov 2006 Affected Packages: texinfo Vulnerable: Yes Security database references: In the Bugtraq database (at SecurityFocus): BugTraq ID 14854, BugTraq ID 20959. In Mitre's CVE dictionary: CVE-2005-3011, CVE-2006-4810. More information: Multiple vulnerabilities have been found in the GNU texinfo package, a documentation system for on-line information and printed output. * CVE-2005-3011 Handling of temporary files is performed in an insecure manner, allowing an attacker to overwrite any file writable by the victim. * CVE-2006-4810 A buffer overflow in util/texindex.c could allow an attacker to execute arbitrary code with the victim's access rights by inducing the victim to run texindex or tex2dvi on a specially crafted texinfo file. For the stable distribution (sarge), these problems have been fixed in version 4.7-2.2sarge2. Note that binary packages for the mipsel architecture are not currently available due to technical problems with the build host. These packages will be made available as soon as possible. For unstable (sid) and the upcoming stable release (etch), these problems have been fixed in version 4.8.dfsg.1-4. We recommend that you upgrade your texinfo package. Fixed in: Debian GNU/Linux 3.1 (sarge) Source: http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2.dsc http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7.orig.tar.gz http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2.diff.gz Alpha: http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_alpha.deb http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_alpha.deb AMD64: http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_amd64.deb http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_amd64.deb ARM: http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_arm.deb http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_arm.deb HPPA: http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_hppa.deb http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_hppa.deb Intel IA-32: http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_i386.deb http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_ia64.deb http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_ia64.deb Motorola 680x0: http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_m68k.deb http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_mips.deb http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_mips.deb PowerPC: http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_powerpc.deb http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_s390.deb http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/t/texinfo/info_4.7-2.2sarge2_sparc.deb http://security.debian.org/pool/updates/main/t/texinfo/texinfo_4.7-2.2sarge2_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End DSA-1219-1 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Debian 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. 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