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USN-815-1: libxml2 vulnerabilities

11 August 2009

libxml2 vulnerabilities

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)

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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