RHSA-2010:0002: Moderate: PyXML security update

First published: Mon Jan 04 2010(Updated: )

PyXML provides XML libraries for Python. The distribution contains a<br>validating XML parser, an implementation of the SAX and DOM programming<br>interfaces, and an interface to the Expat parser.<br>A buffer over-read flaw was found in the way PyXML's Expat parser handled<br>malformed UTF-8 sequences when processing XML files. A specially-crafted<br>XML file could cause Python applications using PyXML's Expat parser to<br>crash while parsing the file. (CVE-2009-3720)<br>This update makes PyXML use the system Expat library rather than its own<br>internal copy; therefore, users must install the RHSA-2009:1625 expat<br>update together with this PyXML update to resolve the CVE-2009-3720 issue.<br>All PyXML users should upgrade to this updated package, which changes PyXML<br>to use the system Expat library. After installing this update along with<br>RHSA-2009:1625, applications using the PyXML library must be restarted for<br>the update to take effect.

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