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Public Date:
632200: CVE-2010-3493 Python: SMTP proxy RFC 2821 module DoS (uncaught exception) (Issue #9129)

The MITRE CVE dictionary describes this issue as:

Multiple race conditions in 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.

Find out more about CVE-2010-3493 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5
Base Metrics AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (python) RHSA-2011:0554 2011-05-19
Red Hat Enterprise Linux 4 (python) RHSA-2011:0491 2011-05-05
Red Hat Enterprise Linux 5 (python) RHSA-2011:0492 2011-05-05

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 3 python Affected

Last Modified