CVE-2011-4944

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    CVE-2011-4944

    Published: 27 Aug 2012Last Modified: 10 Apr 2026

    Summary:

    Details: Python 2.6 through 3.2 creates ~/.pypirc with world-readable permissions before changing them after data has been written, which introduces a race condition that allows local users to obtain a username and password by reading this file.

    References: http://secunia.com/advisories/50858, http://secunia.com/advisories/51024, http://secunia.com/advisories/51040, http://secunia.com/advisories/51087, http://secunia.com/advisories/51089, http://www.ubuntu.com/usn/USN-1592-1, http://www.ubuntu.com/usn/USN-1596-1, http://www.ubuntu.com/usn/USN-1613-1, http://www.ubuntu.com/usn/USN-1613-2, http://www.ubuntu.com/usn/USN-1615-1, http://www.ubuntu.com/usn/USN-1616-1, https://bugzilla.redhat.com/show_bug.cgi?id=758905, http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=650555, http://bugs.python.org/file23824/pypirc-secure.diff, http://bugs.python.org/issue13512, http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html, http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html, http://www.openwall.com/lists/oss-security/2012/03/27/10, http://www.openwall.com/lists/oss-security/2012/03/27/2, http://www.openwall.com/lists/oss-security/2012/03/27/5

    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