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USN-815-1: libxml2 vulnerabilities

11 August 2009

libxml2 vulnerabilities

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Releases

Packages

Details

It was discovered that libxml2 did not correctly handle root XML document
element DTD definitions. If a user were tricked into processing a specially
crafted XML document, a remote attacker could cause the application linked
against libxml2 to crash, leading to a denial of service. (CVE-2009-2414)

It was discovered that libxml2 did not correctly parse Notation and
Enumeration attribute types. If a user were tricked into processing a
specially crafted XML document, a remote attacker could cause the
application linked against libxml2 to crash, leading to a denial of
service. (CVE-2009-2416)

USN-644-1 fixed a vulnerability in libxml2. This advisory provides the
corresponding update for Ubuntu 9.04.

Original advisory details:

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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 9.04
Ubuntu 8.10
Ubuntu 8.04
Ubuntu 6.06

After a standard system upgrade you need to restart your sessions to effect
the necessary changes.

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