Expat is a set of XML parsing libraries.
Multiple vulnerabilities have been discovered in Expat. Please review the CVE identifiers referenced below for details.
A remote attacker could entice a user to open a specially crafted XML file in an application linked against Expat, possibly resulting in a Denial of Service condition.
There is no known workaround at this time.
All Expat users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/expat-2.1.0_beta3"
Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.