Python <2.6.6-r2:2.6, <2.7.1:2.7, <3.1.3:3.1 is vulnerable to DoS in smtpd module.
Tested on SPARC, seems OK.
Stable for HPPA.
amd64 done. Thanks Agostino
Thanks, folks. Added to existing GLSA request.
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.
This issue was resolved and addressed in
GLSA 201401-04 at http://security.gentoo.org/glsa/glsa-201401-04.xml
by GLSA coordinator Sergey Popov (pinkbyte).