Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2792 Python vulnerabilities 23 November 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: python Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Access Confidential Data -- Remote/Unauthenticated Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2016-1000110 CVE-2016-5699 CVE-2016-5636 CVE-2016-0772 Reference: ASB-2016.0108 ESB-2016.2608 ESB-2016.1996 Original Bulletin: http://www.ubuntu.com/usn/usn-3134-1 - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3134-1 November 22, 2016 python2.7, python3.2, python3.4, python3.5 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS - - Ubuntu 12.04 LTS Summary: Several security issues were fixed in Python. Software Description: - - python2.7: An interactive high-level object-oriented language - - python3.5: An interactive high-level object-oriented language - - python3.4: An interactive high-level object-oriented language - - python3.2: An interactive high-level object-oriented language Details: It was discovered that the smtplib library in Python did not return an error when StartTLS fails. A remote attacker could possibly use this to expose sensitive information. (CVE-2016-0772) Rémi Rampin discovered that Python would not protect CGI applications from contents of the HTTP_PROXY environment variable when based on the contents of the Proxy header from HTTP requests. A remote attacker could possibly use this to cause a CGI application to redirect outgoing HTTP requests. (CVE-2016-1000110) Insu Yun discovered an integer overflow in the zipimporter module in Python that could lead to a heap-based overflow. An attacker could use this to craft a special zip file that when read by Python could possibly execute arbitrary code. (CVE-2016-5636) Guido Vranken discovered that the urllib modules in Python did not properly handle carriage return line feed (CRLF) in headers. A remote attacker could use this to craft URLs that inject arbitrary HTTP headers. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5699) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: libpython2.7 2.7.12-1ubuntu0~16.04.1 libpython2.7-minimal 2.7.12-1ubuntu0~16.04.1 libpython2.7-stdlib 2.7.12-1ubuntu0~16.04.1 libpython3.5 3.5.2-2ubuntu0~16.04.1 libpython3.5-minimal 3.5.2-2ubuntu0~16.04.1 libpython3.5-stdlib 3.5.2-2ubuntu0~16.04.1 python2.7 2.7.12-1ubuntu0~16.04.1 python2.7-minimal 2.7.12-1ubuntu0~16.04.1 python3.5 3.5.2-2ubuntu0~16.04.1 python3.5-minimal 3.5.2-2ubuntu0~16.04.1 Ubuntu 14.04 LTS: libpython2.7 2.7.6-8ubuntu0.3 libpython2.7-minimal 2.7.6-8ubuntu0.3 libpython2.7-stdlib 2.7.6-8ubuntu0.3 libpython3.4 3.4.3-1ubuntu1~14.04.5 libpython3.4-minimal 3.4.3-1ubuntu1~14.04.5 libpython3.4-stdlib 3.4.3-1ubuntu1~14.04.5 python2.7 2.7.6-8ubuntu0.3 python2.7-minimal 2.7.6-8ubuntu0.3 python3.4 3.4.3-1ubuntu1~14.04.5 python3.4-minimal 3.4.3-1ubuntu1~14.04.5 Ubuntu 12.04 LTS: libpython2.7 2.7.3-0ubuntu3.9 libpython3.2 3.2.3-0ubuntu3.8 python2.7 2.7.3-0ubuntu3.9 python2.7-minimal 2.7.3-0ubuntu3.9 python3.2 3.2.3-0ubuntu3.8 python3.2-minimal 3.2.3-0ubuntu3.8 After a standard system update you need to restart any Python applications to make all the necessary changes. References: http://www.ubuntu.com/usn/usn-3134-1 CVE-2016-0772, CVE-2016-1000110, CVE-2016-5636, CVE-2016-5699 Package Information: https://launchpad.net/ubuntu/+source/python2.7/2.7.12-1ubuntu0~16.04.1 https://launchpad.net/ubuntu/+source/python3.5/3.5.2-2ubuntu0~16.04.1 https://launchpad.net/ubuntu/+source/python2.7/2.7.6-8ubuntu0.3 https://launchpad.net/ubuntu/+source/python3.4/3.4.3-1ubuntu1~14.04.5 https://launchpad.net/ubuntu/+source/python2.7/2.7.3-0ubuntu3.9 https://launchpad.net/ubuntu/+source/python3.2/3.2.3-0ubuntu3.8 - --------------------------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. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBWDTkcIx+lLeg9Ub1AQgIaw/9HfXabGqcC8na63MA/ivZy3YIOM6RxUHk D6vZexJMIPx6vJg56SGobRpMBXhz3o07pGOk4J5MdWgZZTz0V29TFcqRfnBUy1XH yDVCSmBcZ6iJWk2NrZUL0h8UwkHaUIZMKBk2Mg0kCjht7akGedYRR3fuxQCoKg86 scSmg09tAP6WafiW4Ek5G9dFODSte+/tGWiboEQmG7iUPqLS+AaFBxVQr06hWjQy eQlzBdpQFXLVgeqrpPpEZJnHTVIsMo0ogTXnVpCMkWvIIWxzki490SvpfIpEivOU fckYcnqkounYSG3PY9QkRfk6RsbneTi0/mpe2s8rkri3F1t2V9UsJSDzv9PSZJym QT6ADs9DwIkw+f7z/wmJRTVYKPYD3RlGDdwvMieHWNTsrrenWgNBcpBAOxMTHmBj iMuRyt7R2tzEspyHhx9d7f3G+LdLRr+Xu5Af219ZsF3S1MnVtQQzDGAe1TRd9cxV bBlDzkQhEgUhihipW4RHHShz3gBwZ8GzvkguDcLVeHz3OUeF/cryqRfupkXNdvDT dbDAK9Ya/GeIOBr4ddDgUvZrTgh7YRTKXWHPiSaIg7rM/2t7IlSRLqgFlUxBcf2e ZCqFCv+7xiAkHguhk9aYPJnhQcOavxxDJDyopdVu2CAKzgh/yRpZULlu+y4Rfx+j 6WrM/yaVk8Q= =7o20 -----END PGP SIGNATURE-----