__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN gfax [Debian Security Advisory DSA-1329-1] July 6, 2007 17:00 GMT Number R-292 ______________________________________________________________________________ PROBLEM: Gfax, a GNOME frontend for fax programs, uses temporary files in an unsafe manner which may be expoited to execute arbitrary commands with the privileges of the root user. PLATFORM: Debian GNU/Linux 3.1 alias sarge DAMAGE: Execute arbitrary commands. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. May be expoited to execute arbitrary ASSESSMENT: commands with the privileges of the root user. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-292.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2007/dsa-1329 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-2839 ______________________________________________________________________________ [***** Start Debian Security Advisory DSA-1329-1 *****] Debian Security Advisory DSA-1329-1 gfax -- insecure temporary files Date Reported: 05 Jul 2007 Affected Packages: gfax Vulnerable: Yes Security database references: In Mitre's CVE dictionary: CVE-2007-2839. More information: Steve Kemp from the Debian Security Audit project discovered that gfax, a GNOME frontend for fax programs, uses temporary files in an unsafe manner which may be exploited to execute arbitary commands with the privileges of the root user. For the old stable distribution (sarge) this problem has been fixed in version 0.4.2-11sarge1. The stable distribution (etch) is not affected by this problem. The unstable distribution (sid) is not affected by this problem. We recommend that you upgrade your gfax package. Fixed in: Debian GNU/Linux 3.1 alias sarge Source: http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2.orig.tar.gz http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1.diff.gz http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1.dsc alpha architecture (DEC Alpha) http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1_alpha.deb amd64 architecture (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1_amd64.deb arm architecture (ARM) http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1_arm.deb i386 architecture (Intel ia32) http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1_i386.deb ia64 architecture (Intel ia64) http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1_ia64.deb m68k architecture (Motorola Mc680x0) http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1_m68k.deb s390 architecture (IBM S/390) http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1_s390.deb sparc architecture (Sun SPARC/UltraSPARC) http://security.debian.org/pool/updates/main/g/gfax/gfax_0.4.2-11sarge1_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1329-1 *****] _______________________________________________________________________________ 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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