CVE-2011-4137

Description

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.

How to fix CVE-2011-4137

To remediate CVE-2011-4137, upgrade the affected package to a fixed version below.

• —upgrade to 1.3.1-1 or later
• —upgrade to 1.2.7 or later
• —upgrade to 1.2.7 or later

Is CVE-2011-4137 being exploited?

Low — EPSS is 1.9%, meaning exploitation activity has not been observed at scale.

Affected packages (3)

• from 0, < 1.3.1-1
• from 0, < 1.2.7
• from 0, < 1.2.7, >= 1.3, < 1.3.1

CVSS scores

References (18)

• ADVISORYsecunia.com/advisories/46614
• ADVISORYgithub.com/advisories/GHSA-3jqw-crqj-w8qw
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2011-4137
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2011-4137
• ADVISORY