CVE-2010-3493

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Summary

CVECVE-2010-3493
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2010-10-19 20:00:04 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionMultiple 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.

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

AV:N/AC:M/Au:N/C:N/I:N/A:P

Problem Types: CWE-362 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Python Python 3.1 All All All
Application Python Python 3.2 alpha All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
USN-1613-2: Python 2.4 vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
SUSE update for Multiple Packages - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Bug #135108 “mac osx socket.accept return None instead of """ : Bugs : ZODB af854a3a-2127-422b-91ae-364da2661108 bugs.launchpad.net
oss-security - Re: CVE Request -- Python -- accept() implementation in async core is broken => more subcases af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Python Multiple Denial of Service Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Security Advisory SA50858 - Ubuntu update for python - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
oss-security - Re: CVE Request -- Python -- accept() implementation in async core is broken => more subcases af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
USN-1613-1: Python 2.5 vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Issue 6706: asyncore's accept() is broken - Python tracker af854a3a-2127-422b-91ae-364da2661108 bugs.python.org Patch, Vendor Advisory
Bug 632200 – CVE-2010-3493 Python: SMTP proxy RFC 2821 module DoS (uncaught exception) (Issue #9129) af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
[security-announce] SUSE Security Summary Report: SUSE-SR:2011:002 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Support / Security / Advisories / / MDVSA-2010:215 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
Security Advisory SA51024 - Ubuntu update for python2.5 - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Security Advisory SA51040 - Ubuntu update for python2.4 - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
oss-security - Re: CVE Request -- Python -- accept() implementation in async core is broken => more subcases af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
cpython: 4243df51fe43 Lib/smtpd.py af854a3a-2127-422b-91ae-364da2661108 svn.python.org Patch
Support / Security / Advisories / / MDVSA-2010:216 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
[security-announce] SUSE Security Summary Report: SUSE-SR:2010:024 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
404 Not Found af854a3a-2127-422b-91ae-364da2661108 svn.python.org
Issue 9129: DoS smtpd module vulnerability - Python tracker af854a3a-2127-422b-91ae-364da2661108 bugs.python.org Patch, Vendor Advisory
USN-1596-1: Python 2.6 vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
oss-security - CVE Request -- Python -- accept() implementation in async core is broken => more subcases af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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