libxslt is the XSLT C library developed for the GNOME project. XSLT is an XML language to define transformations for XML.
Multiple vulnerabilities have been found in libxslt:
A remote attacker could entice a user to process a specially crafted file in an application linked against libxslt, possibly resulting in a Denial of Service condition.
There is no known workaround at this time.
All libxslt users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxslt-1.1.28"
Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.