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CVE-2011-4137

Status Candidate

Overview

The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 relies on Python libraries that attempt access to an arbitrary URL with no timeout, which allows remote attackers to cause a denial of service (resource consumption) via a URL associated with (1) a slow response, (2) a completed TCP connection with no application data sent, or (3) a large amount of application data, a related issue to CVE-2011-1521.

Related Files

Ubuntu Security Notice USN-1297-1
Posted Dec 9, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1297-1 - Pall McMillan discovered that Django used the root namespace when storing cached session data. A remote attacker could exploit this to modify sessions. Paul McMillan discovered that Django would not timeout on arbitrary URLs when the application used URLFields. This could be exploited by a remote attacker to cause a denial of service via resource exhaustion. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, root
systems | linux, ubuntu
advisories | CVE-2011-4136, CVE-2011-4137, CVE-2011-4138, CVE-2011-4139
SHA-256 | d90812dfe62d74192f723148eedd422416897927518969173061c4a5f2b9bc9c
Debian Security Advisory 2332-1
Posted Oct 29, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2332-1 - Paul McMillan, Mozilla and the Django core team discovered several vulnerabilities in Django, a Python web framework.

tags | advisory, web, vulnerability, python
systems | linux, debian
advisories | CVE-2011-4136, CVE-2011-4137, CVE-2011-4138, CVE-2011-4139, CVE-2011-4140
SHA-256 | 58a235a4d66e5650b14ae17e73287994e75b7e79c69339689b8b98c9c34b52a1
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