1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200903-19 / xerces-c |
| Release Date | March 09, 2009 |
| Latest Revision | March 09, 2009: 01 |
| Impact | normal |
| Exploitable | remote |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| dev-libs/xerces-c | < 3.0.0-r1 | >= 3.0.0-r1 | All supported architectures |
Related bugreports: #240496
An error in Xerces-C++ allows for a Denial of Service via malicious XML schema files.
Xerces-C++ is a validating XML parser written in a portable subset of C++.
Frank Rast reported that the XML parser in Xerces-C++ does not correctly handle an XML schema definition with a large maxOccurs value, which triggers excessive memory consumption during the validation of an XML file.
A remote attacker could entice a user or automated system to validate an XML file using a specially crafted XML schema file, leading to a Denial of Service (stack consumption and crash).
There is no known workaround at this time.
All Xerces-C++ users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/xerces-c-3.0.0-r1" |