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CVSS: 4.7EPSS: 1%CPEs: 1EXPL: 0

11 Apr 2017 — libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states "I would disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least for XML parser. ** DISPUTADO ** libxml2 2.9.4, cuando se utiliza en el modo de recuperación, permite a los atacantes remotos provocar una denegación de servicio (referencia de puntero NULL) por medio de un documento XML ... • http://www.openwall.com/lists/oss-security/2016/11/05/3 • CWE-476: NULL Pointer Dereference •

CVSS: 6.7EPSS: 0%CPEs: 6EXPL: 1

16 Nov 2016 — libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document. libxml2 2.9.4 y versiones anteriores, como se usa en XMLSec 1.2.23 y versiones anteriores y otros productos, no ofrece un indicador que indique directamente que el documento actual puede ser leido pero... • http://www.securityfocus.com/bid/94347 • CWE-611: Improper Restriction of XML External Entity Reference •

CVSS: 10.0EPSS: 19%CPEs: 5EXPL: 0

20 Sep 2016 — xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document. xpointer.c en libxml2, en versiones anteriores a la 2.9.5 (tal y como se usa en Apple iOS en versiones anteriores a la 10, OS X en versiones anteriores a la 10.12,... • http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-416: Use After Free •

CVSS: 8.8EPSS: 5%CPEs: 17EXPL: 0

23 Jul 2016 — Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function. Vulnerabilidad de uso después de liberación de memoria en libxml2 hasta la versión 2.9.4, como se utiliza en Google Chrome en versiones anteriores a 52.0.2743.82, permite a atacantes remotos provocar una denegación de servicio o posiblemente tener otro impacto ... • http://googlechromereleases.blogspot.com/2016/07/stable-channel-update.html • CWE-416: Use After Free •

CVSS: 7.5EPSS: 1%CPEs: 3EXPL: 1

02 Jun 2016 — The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627. La función xmlBufAttrSerializeTxtContent en xmlsave.c en libxml2 permite a atacantes dependientes del contexto provocar una denegación de servicio (lectura fuera de límites y caída de aplicación) a través de un valor ... • http://rhn.redhat.com/errata/RHSA-2016-2957.html • CWE-122: Heap-based Buffer Overflow CWE-502: Deserialization of Untrusted Data •

CVSS: 7.5EPSS: 12%CPEs: 18EXPL: 1

27 May 2016 — The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving xmlParseName. La función xmlParseElementDecl en parser.c en libxml2 en versiones anteriores a 2.9.4 permite a atacantes dependientes del contexto provocar una denegación de servicio (underread basado en memoria dinámica y caída de aplicación) a través de un archivo manipulado, con la participació... • http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •

CVSS: 10.0EPSS: 2%CPEs: 42EXPL: 0

27 May 2016 — Format string vulnerability in libxml2 before 2.9.4 allows attackers to have unspecified impact via format string specifiers in unknown vectors. Vulnerabilidad de formato de cadena en libxml2 en versiones anteriores a 2.9.4 permite a atacantes tener un impacto no especificado a través de especificadores de formato de cadena en vectores desconocidos. It was discovered that libxml2 incorrectly handled format strings. If a user or automated system were tricked into opening a specially crafted document, an atta... • http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html • CWE-134: Use of Externally-Controlled Format String •

CVSS: 7.1EPSS: 0%CPEs: 6EXPL: 0

27 May 2016 — XML external entity (XXE) vulnerability in the xmlStringLenDecodeEntities function in parser.c in libxml2 before 2.9.4, when not in validating mode, allows context-dependent attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors. Vulneravilidad de XML external entity (XXE) en la función xmlStringLenDecodeEntities en parser.c en libxml2 en versiones anteriores a 2.9.4, cuando no está en modo de validación, permite a atacantes dependientes del contexto le... • http://jvn.jp/en/jp/JVN17535578/index.html • CWE-20: Improper Input Validation •

CVSS: 7.5EPSS: 1%CPEs: 9EXPL: 0

17 May 2016 — The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references. Las funciones (1) xmlParserEntityCheck y (2) xmlParseAttValueComplex en parser.c en libxml2 2.9.3 no hace seguimiento de manera adecuada de la profundidad de recursivi... • http://lists.opensuse.org/opensuse-updates/2016-05/msg00055.html • CWE-20: Improper Input Validation CWE-674: Uncontrolled Recursion •

CVSS: 7.8EPSS: 2%CPEs: 30EXPL: 1

17 May 2016 — Heap-based buffer overflow in the xmlFAParsePosCharGroup function in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document. Desbordamiento del buffer basado en memoria dinámica en la función xmlFAParsePosCharGroup en libxml2 en versiones anteriores a 2.9.4, como se utiliza en Apple iOS en versiones anteriores a 9.3.... • http://lists.apple.com/archives/security-announce/2016/May/msg00001.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •