python: DoS (denial of service), Race Condition vulnerabilities

Users of python please be advised of a DoS (denial of service), Race Condition vulnerabilities that has been identified.
To view this vulnerability, possible remedies, and others please check out the Security Advisories at Critical Watch (http://criticalwatch.com/support/security-advisories.aspx)

MDVSA-2010:216: [MDVSA-2010:216] python DoS, Race Condition
Problem Description:

Multiple vulnerabilities was discovered and corrected in python:

The asyncore module in Python before 3.2 does not properly handle
unsuccessful calls to the accept function, and does not have
accompanying documentation describing how daemon applications should
handle unsuccessful calls to the accept function, which makes it
easier for remote attackers to conduct denial of service attacks that
terminate these applications via network connections (CVE-2010-3492).

Multiple race conditions in smtpd.py in the smtpd module in Python 2.6,
2.7, 3.1, and 3.2 alpha allow remote attackers to cause a denial of
service (daemon outage) by establishing and then immediately closing
a TCP connection, leading to the accept function having an unexpected
return value of None, an unexpected value of None for the address,
or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, or the getpeername
function having an ENOTCONN error, a related issue to CVE-2010-3492
(CVE-2010-3493).Read more at http://www.criticalwatch.com
 

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