| Description: | Description:
The remote host is missing an update to libxml2
announced via advisory USN-644-1.
A security issue affects the following Ubuntu releases:
Ubuntu 6.06 LTS
Ubuntu 7.04
Ubuntu 7.10
Ubuntu 8.04 LTS
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
Details follow:
It was discovered that libxml2 did not correctly handle long entity names.
If a user were tricked into processing a specially crafted XML document,
a remote attacker could execute arbitrary code with user privileges
or cause the application linked against libxml2 to crash, leading to a
denial of service. (CVE-2008-3529)
USN-640-1 fixed vulnerabilities in libxml2. When processing extremely
large XML documents with valid entities, it was possible to incorrectly
trigger the newly added vulnerability protections. This update fixes
the problem. (CVE-2008-3281)
Solution:
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 6.06 LTS:
libxml2 2.6.24.dfsg-1ubuntu1.3
Ubuntu 7.04:
libxml2 2.6.27.dfsg-1ubuntu3.3
Ubuntu 7.10:
libxml2 2.6.30.dfsg-2ubuntu1.3
Ubuntu 8.04 LTS:
libxml2 2.6.31.dfsg-2ubuntu1.2
In general, a standard system upgrade is sufficient to effect the
necessary changes.
http://www.securityspace.com/smysecure/catid.html?in=USN-644-1
Risk factor : Critical
CVSS Score:
10.0
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