__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN QEMU [Debian Security Advisory DSA-1284-1] May 3, 2007 21:00 GMT Number R-225 [REVISED 3 Oct 2007] [REVISED 8 Oct 2007] ______________________________________________________________________________ PROBLEM: Several vulnerabilities have been discovered in the QEMU processor emulator, which may lead to the execution of arbitrary code or denial of service. PLATFORM: Debian GNU/Linux 3.1 (sarge) Debian GNU/Linux 4.0 (etch) RHEL Desktop Multi OS (v. 5 client) RHEL Virtualization (v. 5 server) Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 5 client) DAMAGE: May lead to the execution of arbitrary code or denial of service. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. May lead to the execution of arbitrary code ASSESSMENT: or denial of service. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-225.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2007/dsa-1284 ADDITIONAL LINKS: https://rhn.redhat.com/errata/RHSA-2007-0323.html http://www.debian.org/security/2007/dsa-1384 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-1320 CVE-2007-1321 CVE-2007-1322 CVE-2007-1323 CVE-2007-1366 ______________________________________________________________________________ REVISION HISTORY: 10/03/2007 - revised R-225 to add a link to Red Hat RHSA-2007:0323-2 for RHEL Desktop Multi OS (v. 5 client), RHEL Virtualization (v. 5 server), Red Hat Enterprise Linux (v. 5 server), and Red Hat Enterprise Linux Desktop (v. 5 client). 10/08/2007 - revised R-225 to add a link to Debian Security Advisory DSA-1384-1 for Debian GNU/Linux 4.0 (etch). [***** Start Debian Security Advisory DSA-1284-1 *****] Debian Security Advisory DSA-1284-1 qemu -- several vulnerabilities Date Reported: 01 May 2007 Affected Packages: qemu Vulnerable: Yes Security database references: In Mitre's CVE dictionary: CVE-2007-1320, CVE-2007-1321, CVE-2007-1322, CVE-2007-1323, CVE-2007-1366. More information: Several vulnerabilities have been discovered in the QEMU processor emulator, which may lead to the execution of arbitrary code or denial of service. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2007-1320 Tavis Ormandy discovered that a memory management routine of the Cirrus video driver performs insufficient bounds checking, which might allow the execution of arbitrary code through a heap overflow. CVE-2007-1321 Tavis Ormandy discovered that the NE2000 network driver and the socket code perform insufficient input validation, which might allow the execution of arbitrary code through a heap overflow. CVE-2007-1322 Tavis Ormandy discovered that the icebp instruction can be abused to terminate the emulation, resulting in denial of service. CVE-2007-1323 Tavis Ormandy discovered that the NE2000 network driver and the socket code perform insufficient input validation, which might allow the execution of arbitrary code through a heap overflow. CVE-2007-1366 Tavis Ormandy discovered that the aam instruction can be abused to crash qemu through a division by zero, resulting in denial of service. For the oldstable distribution (sarge) these problems have been fixed in version 0.6.1+20050407-1sarge1. For the stable distribution (etch) these problems have been fixed in version 0.8.2-4etch1. For the unstable distribution (sid) these problems will be fixed soon. We recommend that you upgrade your qemu packages. Fixed in: Debian GNU/Linux 3.1 (sarge) Source: http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407-1sarge1.dsc http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407-1sarge1.diff.gz http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407.orig.tar.gz Intel IA-32: http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407- 1sarge1_i386.deb PowerPC: http://security.debian.org/pool/updates/main/q/qemu/qemu_0.6.1+20050407- 1sarge1_powerpc.deb Debian GNU/Linux 4.0 (etch) Source: http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1.dsc http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1.diff.gz http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2.orig.tar.gz AMD64: http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1_amd64.deb Intel IA-32: http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1_i386.deb PowerPC: http://security.debian.org/pool/updates/main/q/qemu/qemu_0.8.2-4etch1_powerpc.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1284-1 *****] _______________________________________________________________________________ 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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