CVSS: 7.8EPSS: 5%CPEs: 19EXPL: 1CVE-2018-20843 – expat: large number of colons in input makes parser consume high amount of resources, leading to DoS
https://notcve.org/view.php?id=CVE-2018-20843
24 Jun 2019 — In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks). En libexpat en Expat anterior a versión 2.2.7, una entrada XML incluyendo nombres XML que contienen una gran cantidad de "dos puntos", podría hacer que el analizador XML consuma una gran cantidad de recursos de RAM y CPU durante el procesamiento (lo suficiente como ... • http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00039.html • CWE-400: Uncontrolled Resource Consumption CWE-611: Improper Restriction of XML External Entity Reference •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2017-11742
https://notcve.org/view.php?id=CVE-2017-11742
30 Jul 2017 — The writeRandomBytes_RtlGenRandom function in xmlparse.c in libexpat in Expat 2.2.1 and 2.2.2 on Windows allows local users to gain privileges via a Trojan horse ADVAPI32.DLL in the current working directory because of an untrusted search path, aka DLL hijacking. La función writeRandomBytes_RtlGenRandom en el archivo xmlparse.c en libexpat en Expat versiones 2.2.1 y 2.2.2 en Windows, permite a los usuarios locales alcanzar privilegios por medio de una biblioteca de tipo caballo de Troya ADVAPI32.DLL en el d... • http://www.securityfocus.com/bid/100147 • CWE-426: Untrusted Search Path •
CVSS: 7.5EPSS: 0%CPEs: 10EXPL: 1CVE-2013-0340 – Apple Security Advisory 2021-10-26-11
https://notcve.org/view.php?id=CVE-2013-0340
21 Jan 2014 — expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issu... • http://openwall.com/lists/oss-security/2013/02/22/3 • CWE-611: Improper Restriction of XML External Entity Reference •