__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN chmlib [DSA-886-1] November 7, 2005 18:00 GMT Number Q-043 ______________________________________________________________________________ PROBLEM: A buffer overflow has been discovered that could lead to the execution of arbitrary code. PLATFORM: Debian GNU/Linux 3.1 (sarge) DAMAGE: A buffer overflow vulnerability that allows an attacker to execute arbitrary code. SOLUTION: Apply current patches. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Due to the execution of arbitrary code. ASSESSMENT: ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/q-043.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2005/dsa-886 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2005-2659, CVE-2005-2930, CVE-2005-3318 ______________________________________________________________________________ [***** Start DSA-886-1 *****] DSA-886-1 chmlib -- several vulnerabilities Date Reported: 07 Nov 2005 Affected Packages: chmlib Vulnerable: Yes Security database references: In the Bugtraq database (at SecurityFocus): BugTraq ID 15211. In Mitre's CVE dictionary: CVE-2005-2659, CVE-2005-2930, CVE-2005-3318. More information: Several vulnerabilities have been discovered in chmlib, a library for dealing with CHM format files. The Common Vulnerabilities and Exposures project identifies the following problems: * CVE-2005-2659 Palasik Sandor discoverd a buffer overflow in the LZX decompression method. * CVE-2005-2930 A buffer overflow has been discovered that could lead to the execution of arbitrary code. * CVE-2005-3318 Sven Tantau discoverd a buffer overflow that could lead to the execution of arbitrary code. The old stable distribution (woody) does not contain chmlib packages. For the stable distribution (sarge) these problems have been fixed in version 0.35-6sarge1. For the unstable distribution (sid) these problems have been fixed in version 0.37-2. We recommend that you upgrade your chmlib packages. Fixed in: Debian GNU/Linux 3.1 (sarge) Source: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1.dsc http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1.diff.gz http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35.orig.tar.gz Alpha: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_alpha.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_alpha.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_alpha.deb AMD64: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_amd64.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_amd64.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_amd64.deb ARM: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_arm.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_arm.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_arm.deb Intel IA-32: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_i386.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_i386.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_ia64.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_ia64.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_ia64.deb HPPA: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_hppa.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_hppa.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_hppa.deb Motorola 680x0: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_m68k.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_m68k.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_mips.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_mips.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_mips.deb Little endian MIPS: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_mipsel.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_mipsel.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_powerpc.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_powerpc.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_s390.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_s390.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/c/chmlib/ chmlib_0.35-6sarge1_sparc.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-bin_0.35-6sarge1_sparc.deb http://security.debian.org/pool/updates/main/c/chmlib/ chmlib-dev_0.35-6sarge1_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End DSA-886-1 *****] _______________________________________________________________________________ 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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