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Scientific Linux: 12-03-24 Moderate: Python Integer Overflow Threats

Moderate: python security update. Date: Tue, 28 Jul 2009 12:03:24 -0500 Reply-To: Connie Sieh Sender: Security Errata for Scientific Linux From: Connie Sieh Subject: Security ERRATA Moderate: python for SL 4.x on i386/x86_64 Comments: To: scientific Synopsis: Moderate: python security update CVE: CVE-2008-1679 python: imageop module integer overflows CVE-2008-1721 python: integer signedness error in the zlib extension module CVE-2008-1887 python: PyString_FromStringAndSize does not check for negative size values CVE-2008-3142 python: Multiple buffer overflows in unicode processing CVE-2008-2315 python: Multiple integer overflows in python core CVE-2008-3143 python: Multiple integer overflows discovered by Google CVE-2008-3144 python: Potential integer underflow and overflow in the PyOS_vsnprintf C API function CVE-2008-4864 python: imageop module multiple integer overflows CVE-2008-5031 python: stringobject, unicodeobject integer overflows When the assert() system call was disabled, an input sanitization flaw was revealed in the Python string object implementation that led to a buffer overflow. The missing check for negative size values meant the Python memory allocator could allocate less memory than expected. This could result in arbitrary code execution with the Python interpreter's privileges. (CVE-2008-1887) Multiple buffer and integer overflow flaws were found in the Python Unicode string processing and in the Python Unicode and string object implementations. An attacker could use these flaws to cause a denial of service (Python application crash). (CVE-2008-3142, CVE-2008-5031) Multiple integer overflow flaws were found in the Python imageop module. If a Python application used the imageop module to process untrusted images, it could cause the application to crash or, potentially, execute arbitrary code with the Python interpreter's privileges. (CVE-2008-1679, CVE-2008-4864) Multiple integer underflow and overflow flaws were found in the Python snprintf() wrapper implementation. Anattacker could use these flaws to cause a denial of service (memory corruption). (CVE-2008-3144) Multiple integer overflow flaws were found in various Python modules. An attacker could use these flaws to cause a denial of service (Python application crash). (CVE-2008-2315, CVE-2008-3143) An integer signedness error, leading to a buffer overflow, was found in the Python zlib extension module. If a Python application requested the negative byte count be flushed for a decompression stream, it could cause the application to crash or, potentially, execute arbitrary code with the Python interpreter's privileges. (CVE-2008-1721) Would like to thank David Remahl of the Apple Product Security team for responsibly reporting the CVE-2008-1679 and CVE-2008-2315 issues. SRPM: python-2.3.4-14.7.el4_8.2.src.rpm i386: python-2.3.4-14.7.el4_8.2.i386.rpm python-devel-2.3.4-14.7.el4_8.2.i386.rpm python-docs-2.3.4-14.7.el4_8.2.i386.rpm python-tools-2.3.4-14.7.el4_8.2.i386.rpm tkinter-2.3.4-14.7.el4_8.2.i386.rpm x86_64: python-2.3.4-14.7.el4_8.2.x86_64.rpm python-devel-2.3.4-14.7.el4_8.2.x86_64.rpm python-docs-2.3.4-14.7.el4_8.2.x86_64.rpm python-tools-2.3.4-14.7.el4_8.2.x86_64.rpm tkinter-2.3.4-14.7.el4_8.2.x86_64.rpm -Connie Sieh -Troy Dawson . Recent Python patch addresses significant buffer and integer overflow vulnerabilities that posed security risks in Scientific Linux.. Python Update, Security Fix, Scientific Linux Errata, Buffer Overflow, Denial of Service. . LinuxSecurity.com Team

Jul 28, 2009 Scientific Linux