CVSS: 9.8EPSS: 0%CPEs: 26EXPL: 0CVE-2016-0718 – expat: Out-of-bounds heap read on crafted input causing crash
https://notcve.org/view.php?id=CVE-2016-0718
Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a malformed input document, which triggers a buffer overflow. Expat permite a atacantes dependientes del contexto provocar una denegación de servicio (caída) o posiblemente ejecutar código arbitrario a través de un documento de entrada mal formado, lo que desencadena un desbordamiento de buffer. An out-of-bounds read flaw was found in the way Expat processed certain input. A remote attacker could send specially crafted XML that, when parsed by an application using the Expat library, would cause that application to crash or, possibly, execute arbitrary code with the permission of the user running the application. • http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00064.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2016-08 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •
CVSS: 6.8EPSS: 3%CPEs: 27EXPL: 0CVE-2015-1283 – chromium-browser: Heap-buffer-overflow in expat.
https://notcve.org/view.php?id=CVE-2015-1283
Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716. Múltiples vulnerabilidades de desbordamiento de entero en la función XML_GetBuffer en Expat hasta la versión 2.1.0 implementada en Chrome en versiones anteriores a la 44.0.2403.89 y otros productos permite a atacantes remotos causar una denegación de servicio mediante un desbordamiento de buffer basado en memoria dinámica o, posiblemente tener otro impacto no especificado a través de datos XML manipulados, un tema relacionado con CVE-2015-2716. • http://googlechromereleases.blogspot.com/2015/07/stable-channel-update_21.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00038.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00064.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00010.html http://rhn.redhat.com/errata/RHSA-2015-1499.html http • CWE-122: Heap-based Buffer Overflow CWE-190: Integer Overflow or Wraparound •
CVSS: 6.8EPSS: 0%CPEs: 10EXPL: 1CVE-2013-0340
https://notcve.org/view.php?id=CVE-2013-0340
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 issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE. expat 2.1.0 y anteriores no maneja adecuadamente entidades de expansión a menos que un desarrollador de aplicaciones use la función XML_SetEntityDeclHandler, esto permite a atacantes remotos provocar una denegación de servicio (consumo de recursos), enviar peticiones HTTP a los servidores de la intranet, o leer archivos arbitrarios a través de un documento XML manipulado, también conocido como problema XML External Entity (XXE) NOTA: se podría argumentar que debido a que expat ya ofrece la posibilidad de desactivar la expansión entidad externa, la responsabilidad de la solución de este problema se encuentra con los desarrolladores de aplicaciones, de acuerdo con este argumento, esta entrada debe ser rechazada, y cada aplicación afectada tendría su propio CVE . • http://openwall.com/lists/oss-security/2013/02/22/3 http://seclists.org/fulldisclosure/2021/Oct/61 http://seclists.org/fulldisclosure/2021/Oct/62 http://seclists.org/fulldisclosure/2021/Oct/63 http://seclists.org/fulldisclosure/2021/Sep/33 http://seclists.org/fulldisclosure/2021/Sep/34 http://seclists.org/fulldisclosure/2021/Sep/35 http://seclists.org/fulldisclosure/2021/Sep/38 http://seclists.org/fulldisclosure/2021/Sep/39 http://seclists.org/fulldisclosure/2021/Sep • CWE-611: Improper Restriction of XML External Entity Reference •
CVSS: 4.3EPSS: 0%CPEs: 11EXPL: 0CVE-2012-1147
https://notcve.org/view.php?id=CVE-2012-1147
readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a large number of crafted XML files. readfilemap.c en expat antes de v2.1.0 permite causar una denegación de servicio (por consumo de descriptores de fichero) a atacantes dependientes de contexto a través de un gran número de archivos XML hechos a mano. • http://expat.cvs.sourceforge.net/viewvc/expat/expat/xmlwf/readfilemap.c?r1=1.14&r2=1.15 http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html http://sourceforge.net/projects/expat/files/expat/2.1.0 http://sourceforge.net/tracker/?func=detail&aid=2895533&group_id=10127&atid=110127 http://trac.wxwidgets.org/ticket/11194 http://trac.wxwidgets.org/ticket/11432 http://www.securityfocus.com/bid/52379 http://www.securitytracker.com/id/1034344 https://support • CWE-20: Improper Input Validation •
CVSS: 5.0EPSS: 0%CPEs: 22EXPL: 0CVE-2012-0876 – expat: hash table collisions CPU usage DoS
https://notcve.org/view.php?id=CVE-2012-0876
The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value. El analizador XML (xmlparse.c) en expat antes de v2.1.0 calcula los valores de hash sin restringir la capacidad de desencadenar colisiones hash de forma predecible, lo que permite causar una denegación de servicio (por consumo de CPU) a atacantes dependientes de contexto a través de un archivo XML con muchos identificadores con el mismo valor. A denial of service flaw was found in the implementation of hash arrays in Expat. An attacker could use this flaw to make an application using Expat consume an excessive amount of CPU time by providing a specially crafted XML file that triggers multiple hash function collisions. To mitigate this issue, randomization has been added to the hash function to reduce the chance of an attacker successfully causing intentional collisions. • http://bugs.python.org/issue13703#msg151870 http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html http://mail.libexpat.org/pipermail/expat-discuss/2012-March/002768.html http://rhn.redhat.com/errata/RHSA-2012-0731.html http://rhn.redhat.com/errata/RHSA-2016-0062.html http://rhn.redhat.com/errata/RHSA-2016-2957.html http://secunia.com/advisories/49504 http://secunia.com/advisories/51024 • CWE-400: Uncontrolled Resource Consumption CWE-407: Inefficient Algorithmic Complexity •