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USN-89-1: XML library vulnerabilities

28 February 2005

XML library vulnerabilities



Several buffer overflows have been discovered in libxml's FTP
connection and DNS resolution functions. Supplying very long FTP URLs
or IP addresses might result in execution of arbitrary code with the
privileges of the process using libxml.

This does not affect the core XML parsing code, which is what the
majority of programs use this library for.

Note: The same vulnerability was already fixed for libxml2 in

Update instructions

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

Ubuntu 4.10
  • libxml1 -

In general, a standard system update will make all the necessary changes.