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    Debian: DSA-2271-1: curl security update

    Date
    117
    Posted By
    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.
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    Debian Security Advisory DSA-2271-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                         Giuseppe Iuculano
    July 02, 2011                          https://www.debian.org/security/faq
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    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: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
    

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