// For flags

CVE-2010-3493

Python: SMTP proxy RFC 2821 module DoS (uncaught exception) (Issue #9129)

Severity Score

4.3
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Múltiples condiciones de carrera en smtpd.py en el módulo smtpd in Python v2.6, v2.7, v3.1 y v3.2 alpha permite a atacantes remotos provocar una denegación de servicio (agotamiento de demonio)por establecimiento e inmediatamente cerrando una conexión TCP, llevando la función accept a devolver un valor inesperado de None, un valor inesperado de None para la dirección, o un error ECONNABORTED, EAGAIN, o EWOULDBLOCK, o la función getpeername teniendo un error ENOTCONN, tema relacionado con CVE-2010-3492.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2010-09-24 CVE Reserved
  • 2010-10-19 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-07 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
References (25)
URL Tag Source
http://secunia.com/advisories/43068 Third Party Advisory
http://secunia.com/advisories/50858 Third Party Advisory
http://secunia.com/advisories/51024 Third Party Advisory
http://secunia.com/advisories/51040 Third Party Advisory
http://svn.python.org/view?view=rev&revision=84289 X_refsource_confirm
http://www.openwall.com/lists/oss-security/2010/09/09/6 Mailing List
http://www.openwall.com/lists/oss-security/2010/09/11/2 Mailing List
http://www.openwall.com/lists/oss-security/2010/09/22/3 Mailing List
http://www.openwall.com/lists/oss-security/2010/09/24/3 Mailing List
http://www.securityfocus.com/bid/44533 Vdb Entry
http://www.vupen.com/english/advisories/2011/0212 Vdb Entry
https://bugs.launchpad.net/zodb/+bug/135108 X_refsource_misc
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12210 Signature
URL Date SRC
URL Date SRC
http://bugs.python.org/issue6706 2019-10-25
http://bugs.python.org/issue9129 2019-10-25
http://svn.python.org/view/python/branches/py3k/Lib/smtpd.py?r1=84289&r2=84288&pathrev=84289 2019-10-25
URL Date SRC
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html 2019-10-25
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html 2019-10-25
http://www.mandriva.com/security/advisories?name=MDVSA-2010:215 2019-10-25
http://www.mandriva.com/security/advisories?name=MDVSA-2010:216 2019-10-25
http://www.ubuntu.com/usn/USN-1596-1 2019-10-25
http://www.ubuntu.com/usn/USN-1613-1 2019-10-25
http://www.ubuntu.com/usn/USN-1613-2 2019-10-25
https://bugzilla.redhat.com/show_bug.cgi?id=632200 2011-05-19
https://access.redhat.com/security/cve/CVE-2010-3493 2011-05-19
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Python
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 Python
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 3.1
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-
Affected
Python
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 Python
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 3.2
Search vendor "Python" for product "Python" and version "3.2"
alpha
Affected