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CVE-2010-3493Date: (C)2010-10-19   (M)2018-06-11


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 4.3
Exploit Score: 8.6
Impact Score: 2.9
 
CVSS V2 Metrics:
Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality: NONE
Integrity: NONE
Availability: PARTIAL
  
Reference:
SECUNIA-43068
BID-44533
SECUNIA-50858
SECUNIA-51024
SECUNIA-51040
ADV-2011-0212
IAVM:2012-A-0020
MDVSA-2010:215
MDVSA-2010:216
SUSE-SR:2010:024
SUSE-SR:2011:002
USN-1596-1
USN-1613-1
USN-1613-2
http://www.openwall.com/lists/oss-security/2010/09/09/6
http://www.openwall.com/lists/oss-security/2010/09/11/2
http://www.openwall.com/lists/oss-security/2010/09/22/3
http://www.openwall.com/lists/oss-security/2010/09/24/3
http://bugs.python.org/issue6706
http://bugs.python.org/issue9129
http://svn.python.org/view/python/branches/py3k/Lib/smtpd.py?r1=84289&r2=84288&pathrev=84289
http://svn.python.org/view?view=rev&revision=84289
https://bugs.launchpad.net/zodb/+bug/135108
https://bugzilla.redhat.com/show_bug.cgi?id=632200

CPE    4
cpe:/a:python:python:2.7
cpe:/a:python:python:2.6
cpe:/a:python:python:3.1
cpe:/a:python:python:3.2:alpha
...
CWE    1
CWE-362
OVAL    14
oval:org.secpod.oval:def:300220
oval:org.secpod.oval:def:300320
oval:org.secpod.oval:def:500074
oval:org.secpod.oval:def:201594
...

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