Description: | Description: The remote host is missing an update to libxml2 announced via advisory USN-1334-1.
Details:
It was discovered that libxml2 contained an off by one error. If a user or application linked against libxml2 were tricked into opening a specially crafted XML file, an attacker could cause the application to crash or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2011-0216)
It was discovered that libxml2 is vulnerable to double-free conditions when parsing certain XML documents. This could allow a remote attacker to cause a denial of service. (CVE-2011-2821, CVE-2011-2834)
It was discovered that libxml2 did not properly detect end of file when parsing certain XML documents. An attacker could exploit this to crash applications linked against libxml2. (CVE-2011-3905)
It was discovered that libxml2 did not properly decode entity references with long names. If a user or application linked against libxml2 were tricked into opening a specially crafted XML file, an attacker could cause the application to crash or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2011-3919)
Solution: The problem can be corrected by updating your system to the following package versions:
Ubuntu 11.10: libxml2 2.7.8.dfsg-4ubuntu0.1
Ubuntu 11.04: libxml2 2.7.8.dfsg-2ubuntu0.2
Ubuntu 10.10: libxml2 2.7.7.dfsg-4ubuntu0.3
Ubuntu 10.04 LTS: libxml2 2.7.6.dfsg-1ubuntu1.3
Ubuntu 8.04 LTS: libxml2 2.6.31.dfsg-2ubuntu1.7
http://www.securityspace.com/smysecure/catid.html?in=USN-1334-1
CVSS Score: 9.3
CVSS Vector: AV:L/AC:H/Au:NR/C:C/I:C/A:C
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