__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN ClamAV Buffer Overflow [DSA-1153-1] August 21, 2006 22:00 GMT Number Q-288 ______________________________________________________________________________ PROBLEM: There is a heap overflow vulnerability in the UPX unpacker of the ClamAV anti-virus toolkit. PLATFORM: Debian GNU/Linux 3.1 (sarge) DAMAGE: Could allow remote attackers to execute arbitrary code or cause denial of service. SOLUTION: Apply current patches. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Remote attackers could execute arbitrary ASSESSMENT: code. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/q-288.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2006/dsa-1153 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4018 ______________________________________________________________________________ [***** Start DSA-1153-1 *****] Debian Security Advisory DSA-1153-1 clamav -- buffer overflow Date Reported: 18 Aug 2006 Affected Packages: clamav Vulnerable: Yes Security database references: In the Bugtraq database (at SecurityFocus): BugTraq ID 19381. In Mitre's CVE dictionary: CVE-2006-4018. More information: Damian Put discovered a heap overflow vulnerability in the UPX unpacker of the ClamAV anti-virus toolkit which could allow remote attackers to execute arbitrary code or cause denial of service. For the stable distribution (sarge) this problem has been fixed in version 0.84-2.sarge.10. For the stable distribution (sarge) this problem has been fixed in version 0.88.4-0volatile1 in the volatile archive. For the unstable distribution (sid) this problem has been fixed in version 0.88.4-2. 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.10.dsc http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10.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.10_all.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-docs_0.84-2.sarge.10_all.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-testfiles_0.84-2.sarge.10_all.deb Alpha: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_alpha.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_alpha.deb AMD64: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_amd64.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_amd64.deb ARM: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_arm.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_arm.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_arm.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_arm.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_arm.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_arm.deb Intel IA-32: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_i386.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_i386.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_i386.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_i386.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_i386.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_ia64.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_ia64.deb HPPA: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_hppa.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_hppa.deb Motorola 680x0: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_m68k.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_mips.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_mips.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_mips.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_mips.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_mips.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_mips.deb Little endian MIPS: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_mipsel.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_powerpc.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_s390.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_s390.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_s390.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_s390.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_s390.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/c/clamav/clamav_0.84-2.sarge.10_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-daemon_0.84-2.sarge.10_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-freshclam_0.84-2.sarge.10_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/clamav-milter_0.84-2.sarge.10_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav-dev_0.84-2.sarge.10_sparc.deb http://security.debian.org/pool/updates/main/c/clamav/libclamav1_0.84-2.sarge.10_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End DSA-1153-1 *****] _______________________________________________________________________________ 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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