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CVE-2010-3493

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Date: October 19, 2010

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.

Language: C

Severity Score

Severity Score

Weakness Type (CWE)

Race Conditions

CWE-362

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CVSS v3.1

Base Score:
Attack Vector (AV):
Attack Complexity (AC):
Privilegs Required (PR):
User Interaction (UI):
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CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
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