Debian: DSA-2271-1: curl security update

    Date02 Jul 2011
    CategoryDebian
    47
    Posted ByLinuxSecurity Advisories
    Richard Silverman discovered that when doing GSSAPI authentication, libcurl unconditionally performs credential delegation. This hands the server a copy of the client's security credentials, allowing the server to impersonate the client to any other using the same GSSAPI mechanism.
    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-2271-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                         Giuseppe Iuculano
    July 02, 2011                          http://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : curl
    Vulnerability  : improper delegation of client credentials
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2011-2192 
    Debian Bug     : #631615
    
    Richard Silverman discovered that when doing GSSAPI authentication, libcurl
    unconditionally performs credential delegation. This hands the server a copy of
    the client's security credentials, allowing the server to impersonate the
    client to any other using the same GSSAPI mechanism.
    This is obviously a very sensitive operation, which should only be done when
    the user explicitly so directs.
    
    
    For the oldstable distribution (lenny), this problem has been fixed in
    version 7.18.2-8lenny5.
    
    For the stable distribution (squeeze), this problem has been fixed in
    version 7.21.0-2.
    
    For the testing distribution (wheezy), this problem has been fixed in
    version 7.21.6-2.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 7.21.6-2.
    
    We recommend that you upgrade your curl packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: http://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    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/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"5","type":"x","order":"1","pct":55.56,"resources":[]},{"id":"88","title":"Should be more technical","votes":"3","type":"x","order":"2","pct":33.33,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"1","type":"x","order":"3","pct":11.11,"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
    bottom200

    Advisories

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