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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0774 -- [Win][UNIX/Linux] Python: Multiple vulnerabilities 4 August 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Python 2.5.2 and earlier Publisher: Gentoo Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact: Execute Arbitrary Code/Commands Provide Misleading Information Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2008-3144 CVE-2008-3143 CVE-2008-3142 CVE-2008-2316 CVE-2008-2315 Original Bulletin: http://security.gentoo.org/glsa/glsa-200807-16.xml - --------------------------BEGIN INCLUDED TEXT-------------------- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200807-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Python: Multiple vulnerabilities Date: July 31, 2008 Bugs: #230640, #232137 ID: 200807-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities in Python may allow for the execution of arbitrary code. Background ========== Python is an interpreted, interactive, object-oriented programming language. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-lang/python < 2.5.2-r6 *>= 2.4.4-r14 >= 2.5.2-r6 Description =========== Multiple vulnerabilities were discovered in Python: * David Remahl of Apple Product Security reported several integer overflows in core modules such as stringobject, unicodeobject, bufferobject, longobject, tupleobject, stropmodule, gcmodule, mmapmodule (CVE-2008-2315). * David Remahl of Apple Product Security also reported an integer overflow in the hashlib module, leading to unreliable cryptographic digest results (CVE-2008-2316). * Justin Ferguson reported multiple buffer overflows in unicode string processing that only affect 32bit systems (CVE-2008-3142). * The Google Security Team reported multiple integer overflows (CVE-2008-3143). * Justin Ferguson reported multiple integer underflows and overflows in the PyOS_vsnprintf() function, and an off-by-one error when passing zero-length strings, leading to memory corruption (CVE-2008-3144). Impact ====== A remote attacker could exploit these vulnerabilities in Python applications or daemons that pass user-controlled input to vulnerable functions. Exploitation might lead to the execution of arbitrary code or a Denial of Service. Vulnerabilities within the hashlib might lead to weakened cryptographic protection of data integrity or authenticity. Workaround ========== There is no known workaround at this time. Resolution ========== All Python 2.4 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-lang/python-2.4.4-r14" All Python 2.5 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-lang/python-2.5.2-r6" Please note that Python 2.3 is masked since June 24, and we will not be releasing updates to it. It will be removed from the tree in the near future. References ========== [ 1 ] CVE-2008-2315 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2315 [ 2 ] CVE-2008-2316 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2316 [ 3 ] CVE-2008-3142 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3142 [ 4 ] CVE-2008-3143 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3143 [ 5 ] CVE-2008-3144 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3144 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200807-16.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBSJaWnyh9+71yA2DNAQJVzQP/XZSZi278DNWSJ/Ryw3XcQfpDyXiZ+vuk EG5I4CKKPJsDr6K2sNYe/l3gvPgCorrFVcvyD2YlhKInluPNbtIz3D1e2BXyKHk4 Xb9Cjta3anENnQs+UZvgQMp7/43VZHhOAIV5mVfKEF7RehCRRVx/wS4NgDowbCOS jq9cgSsBcww= =IXSP -----END PGP SIGNATURE-----