Linux Security
    Linux Security
    Linux Security

    Debian: DSA-2763-1: pyopenssl security update

    Date 24 Sep 2013
    141
    Posted By LinuxSecurity Advisories
    It was discovered that PyOpenSSL, a Python wrapper around the OpenSSL library, does not properly handle certificates with NULL characters in the Subject Alternative Name field.
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-2763-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                      Salvatore Bonaccorso
    September 24, 2013                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : pyopenssl
    Vulnerability  : hostname check bypassing
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2013-4314
    Debian Bug     : 722055
    
    It was discovered that PyOpenSSL, a Python wrapper around the OpenSSL
    library, does not properly handle certificates with NULL characters in
    the Subject Alternative Name field.
    
    A remote attacker in the position to obtain a certificate for
    'www.foo.org\0.example.com' from a CA that a SSL client trusts, could
    use this to spoof 'www.foo.org' and conduct man-in-the-middle attacks
    between the PyOpenSSL-using client and the SSL server.
    
    For the oldstable distribution (squeeze), this problem has been fixed in
    version 0.10-1+squeeze1.
    
    For the stable distribution (wheezy), this problem has been fixed in
    version 0.13-2+deb7u1.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 0.13-2.1.
    
    We recommend that you upgrade your pyopenssl packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

    Advisories

    LinuxSecurity Poll

    'Tis the season of giving! How have you given back to the open-source community?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/49-tis-the-season-of-giving-how-have-you-given-back-to-the-open-source-community?task=poll.vote&format=json
    49
    radio
    [{"id":"171","title":"I've contributed to the development of an open-source project.","votes":"8","type":"x","order":"1","pct":27.59,"resources":[]},{"id":"172","title":"I've reviewed open-source code for security bugs.","votes":"6","type":"x","order":"2","pct":20.69,"resources":[]},{"id":"173","title":"I've made a donation to an open-source project.","votes":"15","type":"x","order":"3","pct":51.72,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350

    Please vote first in order to view vote results.


    VIEW MORE POLLS

    bottom 200

    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.