Ubuntu Security Notice 1449-1 - It was discovered that feedparser did not properly sanitize ENTITY declarations in encoded fields. A remote attacker could exploit this to cause a denial of service via memory exhaustion.
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Ubuntu Security Notice USN-1449-1
May 22, 2012
feedparser vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
Applications using feedparser could be made to crash if they fetched a
specially crafted feed.
Software Description:
- feedparser: Universal Feed Parser for Python
Details:
It was discovered that feedparser did not properly sanitize ENTITY
declarations in encoded fields. A remote attacker could exploit this to
cause a denial of service via memory exhaustion.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
python-feedparser 5.1-0ubuntu3.1
python3-feedparser 5.1-0ubuntu3.1
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1449-1
CVE-2012-2921
Package Information:
https://launchpad.net/ubuntu/+source/feedparser/5.1-0ubuntu3.1