CVE-2013-7440

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    CVE-2013-7440

    Published: 7 Jun 2016Last Modified: 10 Apr 2026

    Summary:

    Details: The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.

    References: https://access.redhat.com/errata/RHSA-2016:1166, https://bugzilla.redhat.com/show_bug.cgi?id=1224999, http://seclists.org/oss-sec/2015/q2/483, http://seclists.org/oss-sec/2015/q2/523, http://www.securityfocus.com/bid/74707, https://bugs.python.org/issue17997, https://hg.python.org/cpython/rev/10d0edadbcdd

    Affected packages

    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
    CVE-2013-7440 | CVE-DB