Linux Security
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    Linux Security

    Debian: DSA-2394-1: libxml2 security update

    Date 26 Jan 2012
    143
    Posted By LinuxSecurity Advisories
    Many security problems had been fixed in libxml2, a popular library to handle XML data files. CVE-2011-3919:
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-2394-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                             Luciano Bello
    January 27, 2012                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : libxml2
    Vulnerability  : several
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2011-0216 CVE-2011-2821 CVE-2011-2834 CVE-2011-3905 
                     CVE-2011-3919 
    Debian Bug     : 652352 643648 656377
    
    Many security problems had been fixed in libxml2, a popular library to handle
    XML data files.
    
    CVE-2011-3919:
    Jüri Aedla discovered a heap-based buffer overflow that allows remote attackers
    to cause a denial of service or possibly have unspecified other impact via
    unknown vectors.
    
    CVE-2011-0216:
    An Off-by-one error have been discoveried that allows remote attackers to 
    execute arbitrary code or cause a denial of service. 
    
    CVE-2011-2821:
    A memory corruption (double free) bug has been identified in libxml2's XPath
    engine. Through it, it is possible to an attacker allows cause a denial of 
    service or possibly have unspecified other impact. This vulnerability does not
    affect the oldstable distribution (lenny).
    
    CVE-2011-2834:
    Yang Dingning discovered a double free vulnerability related to XPath handling.
    
    CVE-2011-3905:
    An out-of-bounds read vulnerability had been discovered, which allows remote
    attackers to cause a denial of service.
    
    For the oldstable distribution (lenny), this problem has been fixed in
    version 2.6.32.dfsg-5+lenny5.
    
    For the stable distribution (squeeze), this problem has been fixed in
    version 2.7.8.dfsg-2+squeeze2.
    
    For the testing distribution (wheezy), this problem has been fixed in
    version 2.7.8.dfsg-7.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 2.7.8.dfsg-7.
    
    We recommend that you upgrade your libxml2 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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