CVEvulnerability
CVE-2010-3493
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2010-10-19
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-362
Description
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.
Affected configurations
• python python 3.1
• python python 3.2
Related
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- http://bugs.python.org/issue6706 Patch, Vendor Advisory
- http://bugs.python.org/issue9129 Patch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html lists.opensuse.org
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html lists.opensuse.org
- http://secunia.com/advisories/43068 secunia.com
- http://secunia.com/advisories/50858 secunia.com
- http://secunia.com/advisories/51024 secunia.com
- http://secunia.com/advisories/51040 secunia.com
- http://svn.python.org/view/python/branches/py3k/Lib/smtpd.py?r1=84289&r2=84288&pathrev=84289 Patch
- http://svn.python.org/view?view=rev&revision=84289 svn.python.org
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:215 www.mandriva.com
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:216 www.mandriva.com
- http://www.openwall.com/lists/oss-security/2010/09/09/6 www.openwall.com
- http://www.openwall.com/lists/oss-security/2010/09/11/2 www.openwall.com
- http://www.openwall.com/lists/oss-security/2010/09/22/3 www.openwall.com
- http://www.openwall.com/lists/oss-security/2010/09/24/3 www.openwall.com
- http://www.securityfocus.com/bid/44533 www.securityfocus.com
- http://www.ubuntu.com/usn/USN-1596-1 www.ubuntu.com
- http://www.ubuntu.com/usn/USN-1613-1 www.ubuntu.com
- http://www.ubuntu.com/usn/USN-1613-2 www.ubuntu.com
- http://www.vupen.com/english/advisories/2011/0212 www.vupen.com
- https://bugs.launchpad.net/zodb/+bug/135108 bugs.launchpad.net
- https://bugzilla.redhat.com/show_bug.cgi?id=632200 bugzilla.redhat.com
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12210 oval.cisecurity.org
- http://bugs.python.org/issue6706 Patch, Vendor Advisory
- http://bugs.python.org/issue9129 Patch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html lists.opensuse.org
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html lists.opensuse.org
- http://secunia.com/advisories/43068 secunia.com
- http://secunia.com/advisories/50858 secunia.com
- http://secunia.com/advisories/51024 secunia.com
- http://secunia.com/advisories/51040 secunia.com
- http://svn.python.org/view/python/branches/py3k/Lib/smtpd.py?r1=84289&r2=84288&pathrev=84289 Patch
- http://svn.python.org/view?view=rev&revision=84289 svn.python.org
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:215 www.mandriva.com
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:216 www.mandriva.com
- http://www.openwall.com/lists/oss-security/2010/09/09/6 www.openwall.com
- http://www.openwall.com/lists/oss-security/2010/09/11/2 www.openwall.com
- http://www.openwall.com/lists/oss-security/2010/09/22/3 www.openwall.com
- http://www.openwall.com/lists/oss-security/2010/09/24/3 www.openwall.com
- http://www.securityfocus.com/bid/44533 www.securityfocus.com
- http://www.ubuntu.com/usn/USN-1596-1 www.ubuntu.com
- http://www.ubuntu.com/usn/USN-1613-1 www.ubuntu.com
- http://www.ubuntu.com/usn/USN-1613-2 www.ubuntu.com
- http://www.vupen.com/english/advisories/2011/0212 www.vupen.com
- https://bugs.launchpad.net/zodb/+bug/135108 bugs.launchpad.net
- https://bugzilla.redhat.com/show_bug.cgi?id=632200 bugzilla.redhat.com
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12210 oval.cisecurity.org