PSF-2010-7

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    PSF-2010-7

    Published: 19 Oct 2010Last Modified: 9 Oct 2025
    Aliases:
    CVE-2010-3493

    Summary: smtpd accept bug and race condition

    Details: 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.

    References: https://bugs.python.org/issue6706

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -19e9fefc660d623ce7c31fb008cde1157ae12aba

    Affected versions

    v0.9.8
    v0.9.9

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PSF-2010-7 | CVE-DB