__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Python2.4 Vulnerabilities [Debian Security Advisory DSA-1551-1] April 25, 2008 12:00 GMT Number S-276 [REVISED 18 Aug 2008] ______________________________________________________________________________ PROBLEM: Several vulnerabilities have been discovered in the interpreter for the Python language which may lead to the execution of arbitrary code. PLATFORM: Debian GNU/Linux 4.0 (stable) and (etch) DAMAGE: Execute arbitrary code. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. May lead to the execution of arbitrary code ASSESSMENT: if a user is tricked into processing malformed images. ______________________________________________________________________________ CVSS 2 BASE SCORE: 6.4 TEMPORAL SCORE: 5.3 VECTOR: (AV:N/AC:L/Au:N/C:P/I:P/A:N/E:F/RL:OF/RC:C) ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-276.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2008/dsa-1551 ADDITIONAL LINK: http://www.debian.org/security/2008/dsa-1621 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-2052 CVE-2007-4965 CVE-2008-1679 CVE-2008-1721 CVE-2008-1887 ______________________________________________________________________________ REVISION HISTORY: 08/18/2008 - revised S-276 to add a link to Debian Security Advisory DSA-1620-1 for Debian GNU/Linux 4.0 (etch). [***** Start Debian Security Advisory DSA-1551-1 *****] Debian Security Advisory DSA-1551-1 python2.4 -- several vulnerabilities Date Reported: 19 Apr 2008 Affected Packages: python2.4 Vulnerable: Yes Security database references: In Mitre's CVE dictionary: CVE-2007-2052, CVE-2007-4965, CVE-2008-1679, CVE-2008-1721, CVE-2008-1887. More information: Several vulnerabilities have been discovered in the interpreter for the Python language. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2007-2052 Piotr Engelking discovered that the strxfrm() function of the locale module miscalculates the length of an internal buffer, which may result in a minor information disclosure. CVE-2007-4965 It was discovered that several integer overflows in the imageop module may lead to the execution of arbitrary code, if a user is tricked into processing malformed images. This issue is also tracked as CVE-2008-1679 due to an initially incomplete patch. CVE-2008-1721 Justin Ferguson discovered that a buffer overflow in the zlib module may lead to the execution of arbitrary code. CVE-2008-1887 Justin Ferguson discovered that insufficient input validation in PyString_FromStringAndSize() may lead to the execution of arbitrary code. For the stable distribution (etch), these problems have been fixed in version 2.4.4-3+etch1. For the unstable distribution (sid), these problems have been fixed in version 2.4.5-2. We recommend that you upgrade your python2.4 packages. Fixed in: Debian GNU/Linux 4.0 (stable) Source: http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1.diff.gz http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4.orig.tar.gz http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1.dsc Architecture-independent component: http://security.debian.org/pool/updates/main/p/python2.4/python2.4-examples_2.4.4-3+etch1_all.deb http://security.debian.org/pool/updates/main/p/python2.4/idle-python2.4_2.4.4-3+etch1_all.deb Alpha: http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_alpha.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_alpha.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_alpha.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_alpha.deb AMD64: http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_amd64.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_amd64.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_amd64.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_amd64.deb ARM: http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_arm.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_arm.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_arm.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_arm.deb HP Precision: http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_hppa.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_hppa.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_hppa.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_hppa.deb Intel IA-32: http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_i386.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_i386.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_i386.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_ia64.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_ia64.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_ia64.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_ia64.deb Big-endian MIPS: http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_mips.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_mips.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_mips.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_mips.deb Little-endian MIPS: http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_mipsel.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_mipsel.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_mipsel.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_powerpc.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_powerpc.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_powerpc.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/p/python2.4/python2.4-minimal_2.4.4-3+etch1_s390.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4_2.4.4-3+etch1_s390.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dev_2.4.4-3+etch1_s390.deb http://security.debian.org/pool/updates/main/p/python2.4/python2.4-dbg_2.4.4-3+etch1_s390.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1551-1 *****] _______________________________________________________________________________ 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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