Veracode Vulnerability DatabaseVERACODE:24487Denial Of Service (DoS)
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
Python is vulnerable to Denial of Service (DoS). The attack is possible because of multiple race conditions in smtpd.py in the smtpd module, allowing a 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.
References
bugs.python.org/issue6706
bugs.python.org/issue9129
lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
secunia.com/advisories/43068
secunia.com/advisories/50858
secunia.com/advisories/51024
secunia.com/advisories/51040
svn.python.org/view/python/branches/py3k/Lib/smtpd.py?r1=84289&r2=84288&pathrev=84289
svn.python.org/view?view=rev&revision=84289
www.mandriva.com/security/advisories?name=MDVSA-2010:215
www.mandriva.com/security/advisories?name=MDVSA-2010:216
www.openwall.com/lists/oss-security/2010/09/09/6
www.openwall.com/lists/oss-security/2010/09/11/2
www.openwall.com/lists/oss-security/2010/09/22/3
www.openwall.com/lists/oss-security/2010/09/24/3
www.securityfocus.com/bid/44533
www.ubuntu.com/usn/USN-1596-1
www.ubuntu.com/usn/USN-1613-1
www.ubuntu.com/usn/USN-1613-2
www.vupen.com/english/advisories/2011/0212
access.redhat.com/errata/RHSA-2011:0491
access.redhat.com/security/updates/classification/#moderate
bugs.launchpad.net/zodb/+bug/135108
bugzilla.redhat.com/show_bug.cgi?id=632200
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12210
rhn.redhat.com/errata/RHSA-2009-1625.html
Related
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P