__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN clamav [DSA-887-1] November 7, 2005 18:00 GMT Number Q-045 ______________________________________________________________________________ PROBLEM: A specially crafted executable could cause the extractor to write beyond buffer boundaries, allowing an attacker to execute arbitrary code. PLATFORM: Debian GNU/Linux 3.1 (sarge) DAMAGE: An attacker could execute arbitrary code. SOLUTION: Apply current patches. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. An attacker could execute arbitrary code. ASSESSMENT: ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/q-045.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2005/dsa-887 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2005-3303 ______________________________________________________________________________ [***** Start DSA-887-1 *****] DSA-887-1 clamav -- several vulnerabilities Date Reported: 07 Nov 2005 Affected Packages: clamav Vulnerable: Yes Security database references: In Mitre's CVE dictionary: CVE-2005-3239, CVE-2005-3303, CVE-2005-3500, CVE-2005-3501. More information: Several vulnerabilities have been discovered in Clam AntiVirus, the antivirus scanner for Unix, designed for integration with mail servers to perform attachment scanning. The Common Vulnerabilities and Exposures project identifies the following problems: * CVE-2005-3239 The OLE2 unpacker allows remote attackers to cause a segmentation fault via a DOC file with an invalid property tree, which triggers an infinite recursion. * CVE-2005-3303 A specially crafted executable compressed with FSG 1.33 could cause the extractor to write beyond buffer boundaries, allowing an attacker to execute arbitrary code. * CVE-2005-3500 A specially crafted CAB file could cause ClamAV to be locked in an infinite loop and use all available processor resources, resulting in a denial of service. * CVE-2005-3501 A specially crafted CAB file could cause ClamAV to be locked in an infinite loop and use all available processor resources, resulting in a denial of service. The old stable distribution (woody) does not contain clamav packages. For the stable distribution (sarge) these problems have been fixed in version 0.84-2.sarge.6. For the unstable distribution (sid) these problems have been fixed in version 0.87.1-1. We recommend that you upgrade your clamav packages. Fixed in: Debian GNU/Linux 3.1 (sarge) Source: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6.dsc http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6.diff.gz http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84.orig.tar.gz Architecture-independent component: http://security.debian.org/pool/updates/main/c/clamav/ clamav-base_0.84-2.sarge.6_all.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-docs_0.84-2.sarge.6_all.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-testfiles_0.84-2.sarge.6_all.deb Alpha: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_alpha.deb AMD64: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_amd64.deb ARM: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_arm.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_arm.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_arm.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_arm.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_arm.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_arm.deb Intel IA-32: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_i386.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_i386.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_i386.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_i386.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_i386.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_ia64.deb HPPA: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_hppa.deb Motorola 680x0: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_mips.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_mips.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_mips.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_mips.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_mips.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_mips.deb Little endian MIPS: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_s390.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_s390.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_s390.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_s390.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_s390.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/c/clamav/ clamav_0.84-2.sarge.6_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-daemon_0.84-2.sarge.6_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-freshclam_0.84-2.sarge.6_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/ clamav-milter_0.84-2.sarge.6_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav-dev_0.84-2.sarge.6_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/ libclamav1_0.84-2.sarge.6_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End DSA-887-1 *****] _______________________________________________________________________________ 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. 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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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