CVE-2014-4338

cups-browsed en cups-filters anterior a 1.0.53 permite a atacantes remotos evadir restricciones de acceso en circunstancias oportunistas mediante el aprovechamiento de un directivo cups-browsed.conf BrowseAllow malformado que se interpreta como si cediera acceso de navegación a todas las direcciones IP.

A flaw was found in the way the cups-browsed daemon interpreted the "BrowseAllow" directive in the cups-browsed.conf file. An attacker able to add a malformed "BrowseAllow" directive to the cups-browsed.conf file could use this flaw to bypass intended access restrictions.

The cups-filters package contains backends, filters, and other software that was once part of the core CUPS distribution but is now maintained independently. An out-of-bounds read flaw was found in the way the process_browse_data() function of cups-browsed handled certain browse packets. A remote attacker could send a specially crafted browse packet that, when processed by cups-browsed, would crash the cups-browsed daemon. A flaw was found in the way the cups-browsed daemon interpreted the "BrowseAllow" directive in the cups-browsed.conf file. An attacker able to add a malformed "BrowseAllow" directive to the cups-browsed.conf file could use this flaw to bypass intended access restrictions.