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CVE-2011-4944

Status Candidate

Overview

Python 2.6 through 3.2 creates ~/.pypirc with world-readable permissions before changing them after data has been written, which introduces a race condition that allows local users to obtain a username and password by reading this file.

Related Files

Mandriva Linux Security Advisory 2013-117
Posted Apr 11, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-117 - A race condition was found in the way the Python distutils module set file permissions during the creation of the.pypirc file. If a local user had access to the home directory of another user who is running distutils, they could use this flaw to gain access to that user's.pypirc file, which can contain usernames and passwords for code repositories. Additionally, python has been built against the system expat and ffi libraries, to avoid any future issues with those.

tags | advisory, local, python
systems | linux, mandriva
advisories | CVE-2011-4944
MD5 | 6ea4337fff0737654dbae92c2d347b73
Ubuntu Security Notice USN-1616-1
Posted Oct 25, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1616-1 - It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working directory could exploit this to execute arbitrary code. This issue only affected Ubuntu 10.04 LTS. It was discovered that the audioop module did not correctly perform input validation. If a user or automated system were tricked into opening a crafted audio file, an attacker could cause a denial of service via application crash. These issues only affected Ubuntu 10.04 LTS. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local, python
systems | linux, ubuntu
advisories | CVE-2008-5983, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150, CVE-2012-2135, CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150, CVE-2012-2135
MD5 | c6c44f5816b7c0bbd6afdb374ec8925b
Ubuntu Security Notice USN-1615-1
Posted Oct 24, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1615-1 - It was discovered that Python distutils contained a race condition when creating the ~/.pypirc file. A local attacker could exploit this to obtain sensitive information. It was discovered that SimpleXMLRPCServer did not properly validate its input when handling HTTP POST requests. A remote attacker could exploit this to cause a denial of service via excessive CPU utilization. This issue only affected Ubuntu 11.04 and 11.10. Various other issues were also addressed.

tags | advisory, remote, web, denial of service, local, python
systems | linux, ubuntu
advisories | CVE-2011-4944, CVE-2012-0845, CVE-2012-1150, CVE-2012-2135, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150, CVE-2012-2135
MD5 | a4f36fce7fd68ed4bdffd995a04733ba
Ubuntu Security Notice USN-1613-2
Posted Oct 18, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1613-2 - USN-1613-1 fixed vulnerabilities in Python 2.5. This update provides the corresponding updates for Python 2.4. It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working directory could exploit this to execute arbitrary code. Various other issues were also addressed.

tags | advisory, arbitrary, local, vulnerability, python
systems | linux, ubuntu
advisories | CVE-2008-5983, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1148, CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1148
MD5 | 3ddeab56299a8cc01537f7b23b77d009
Ubuntu Security Notice USN-1613-1
Posted Oct 18, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1613-1 - It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working directory could exploit this to execute arbitrary code. It was discovered that the audioop module did not correctly perform input validation. If a user or automated system were tricked into opening a crafted audio file, an attacker could cause a denial of service via application crash. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local, python
systems | linux, ubuntu
advisories | CVE-2008-5983, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1148, CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1148
MD5 | ba65090626e4879ab3333610086858c6
Ubuntu Security Notice USN-1596-1
Posted Oct 5, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1596-1 - It was discovered that Python would prepend an empty string to sys.path under certain circumstances. A local attacker with write access to the current working directory could exploit this to execute arbitrary code. It was discovered that the audioop module did not correctly perform input validation. If a user or automated system were tricked into opening a crafted audio file, an attacker could cause a denial of service via application crash. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local, python
systems | linux, ubuntu
advisories | CVE-2008-5983, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150, CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2010-3493, CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150
MD5 | 077d2cf947d04a01882d946bad5a363b
Ubuntu Security Notice USN-1592-1
Posted Oct 2, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1592-1 - Niels Heinen discovered that the urllib and urllib2 modules would process Location headers that specify a redirection to file: URLs. A remote attacker could exploit this to obtain sensitive information or cause a denial of service. This issue only affected Ubuntu 11.04. It was discovered that SimpleHTTPServer did not use a charset parameter in the Content-Type HTTP header. An attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks against Internet Explorer 7 users. This issue only affected Ubuntu 11.04. Various other issues were also addressed.

tags | advisory, remote, web, denial of service, xss
systems | linux, ubuntu
advisories | CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150
MD5 | c95a58a7b5167c9782220b3278409cfc
Mandriva Linux Security Advisory 2012-096-1
Posted Jul 2, 2012
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2012-096 - Multiple vulnerabilities has been discovered and corrected in python. The _ssl module would always disable the CBC IV attack countermeasure. A flaw was found in the way the Python SimpleHTTPServer module generated directory listings. An attacker able to upload a file with a specially-crafted name to a server could possibly perform a cross-site scripting attack against victims visiting a listing page generated by SimpleHTTPServer, for a directory containing the crafted file. A race condition was found in the way the Python distutils module set file permissions during the creation of the.pypirc file. Various other issues were also addressed.

tags | advisory, vulnerability, xss, python
systems | linux, mandriva
advisories | CVE-2011-3389, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1150
MD5 | 9dad8d0091ad24def18306069abf416c
Mandriva Linux Security Advisory 2012-097
Posted Jun 21, 2012
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2012-097 - Multiple vulnerabilities has been discovered and corrected in python. A race condition was found in the way the Python distutils module set file permissions during the creation of the .pypirc file. A flaw was found in the way the Python SimpleXMLRPCServer module handled clients disconnecting prematurely. Various other issues have also been addressed. The updated packages have been patched to correct these issues.

tags | advisory, vulnerability, python
systems | linux, mandriva
advisories | CVE-2011-3389, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1150
MD5 | f4622b2b9f5f06b7dab3d8033ecb179e
Mandriva Linux Security Advisory 2012-096
Posted Jun 21, 2012
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2012-096 - Multiple vulnerabilities has been discovered and corrected in python. A flaw was found in the way the Python SimpleHTTPServer module generated directory listings. A race condition was found in the way the Python distutils module set file permissions during the creation of the .pypirc file. Various other issues have also been addressed. The updated packages have been patched to correct these issues.

tags | advisory, vulnerability, python
systems | linux, mandriva
advisories | CVE-2011-3389, CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-0876, CVE-2012-1150
MD5 | 2ea6b630ab4083b2d6da0e0cb314b1b7
Red Hat Security Advisory 2012-0745-01
Posted Jun 18, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0745-01 - Python is an interpreted, interactive, object-oriented programming language. A denial of service flaw was found in the implementation of associative arrays in Python. An attacker able to supply a large number of inputs to a Python application that are used as keys when inserting data into an array could trigger multiple hash function collisions, making array operations take an excessive amount of CPU time. To mitigate this issue, randomization has been added to the hash function to reduce the chance of an attacker successfully causing intentional collisions.

tags | advisory, denial of service, python
systems | linux, redhat
advisories | CVE-2011-4940, CVE-2011-4944, CVE-2012-1150
MD5 | 71ab9ac648077b734a35a8a9ede7ed0e
Red Hat Security Advisory 2012-0744-01
Posted Jun 18, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0744-01 - Python is an interpreted, interactive, object-oriented programming language. A denial of service flaw was found in the implementation of associative arrays in Python. An attacker able to supply a large number of inputs to a Python application that are used as keys when inserting data into an array could trigger multiple hash function collisions, making array operations take an excessive amount of CPU time. To mitigate this issue, randomization has been added to the hash function to reduce the chance of an attacker successfully causing intentional collisions.

tags | advisory, denial of service, python
systems | linux, redhat
advisories | CVE-2011-4940, CVE-2011-4944, CVE-2012-0845, CVE-2012-1150
MD5 | 59ca55e6cc80a57ab0a92fe7138ce424
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