CVSS: 8.1EPSS: 0%CPEs: 1EXPL: 0CVE-2022-49043 – libxml: use-after-free in xmlXIncludeAddNode
https://notcve.org/view.php?id=CVE-2022-49043
26 Jan 2025 — xmlXIncludeAddNode in xinclude.c in libxml2 before 2.11.0 has a use-after-free. A flaw was found in libxml2 where improper handling of memory allocation failures in `libxml2` can lead to crashes, memory leaks, or inconsistent states. While an attacker cannot directly control allocation failures, they may trigger denial-of-service conditions under extreme system stress. It was discovered that libxml2 incorrectly handled certain memory operations. A remote attacker could use this issue to cause libxml2 to cra... • https://github.com/php/php-src/issues/17467 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 1CVE-2024-25062 – libxml2: use-after-free in XMLReader
https://notcve.org/view.php?id=CVE-2024-25062
04 Feb 2024 — An issue was discovered in libxml2 before 2.11.7 and 2.12.x before 2.12.5. When using the XML Reader interface with DTD validation and XInclude expansion enabled, processing crafted XML documents can lead to an xmlValidatePopElement use-after-free. Se descubrió un problema en libxml2 anterior a 2.11.7 y 2.12.x anterior a 2.12.5. Cuando se utiliza la interfaz del Lector XML con la validación DTD y la expansión XInclude habilitada, el procesamiento de documentos XML manipulados puede generar un use-after-free... • https://gitlab.gnome.org/GNOME/libxml2/-/issues/604 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2023-45322 – Gentoo Linux Security Advisory 202402-11
https://notcve.org/view.php?id=CVE-2023-45322
06 Oct 2023 — libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these issues are critical enough to warrant a CVE ID ... because an attacker typically can't control when memory allocations fail." ** EN DISPUTA ** libxml2 hasta 2.11.5 tiene un use-after-free que solo puede ocurrir después de que falla una determinada asignación de memoria. Esto ocurre en xmlUnlinkNode en tree.c. NOTA... • http://www.openwall.com/lists/oss-security/2023/10/06/5 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 1CVE-2023-28484 – libxml2: NULL dereference in xmlSchemaFixupComplexType
https://notcve.org/view.php?id=CVE-2023-28484
20 Apr 2023 — In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c. A NULL pointer dereference vulnerability was found in libxml2. This issue occurs when parsing (invalid) XML schemas. Red Hat Single Sign-On is an integrated sign-on solution, available as a Red Hat JBoss Middleware for OpenShift containerized image. • https://gitlab.gnome.org/GNOME/libxml2/-/issues/491 • CWE-20: Improper Input Validation CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2023-29469 – libxml2: Hashing of empty dict strings isn't deterministic
https://notcve.org/view.php?id=CVE-2023-29469
20 Apr 2023 — An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value). A flaw was found in libxml2. This issue occurs when hashing empty strings which aren't null-terminated, xmlDictComputeFa... • https://gitlab.gnome.org/GNOME/libxml2/-/issues/510 • CWE-20: Improper Input Validation CWE-415: Double Free •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 1CVE-2022-40303 – libxml2: integer overflows with XML_PARSE_HUGE
https://notcve.org/view.php?id=CVE-2022-40303
01 Nov 2022 — An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault. Se descubrió un problema en libxml2 antes de la versión 2.10.3. Al analizar un documento XML de varios gigabytes con la opción de analizador XML_PARSE_HUGE habilitada, varios contadores de enteros pueden desbordarse. • https://packetstorm.news/files/id/169825 • CWE-190: Integer Overflow or Wraparound •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 1CVE-2022-40304 – libxml2: dict corruption caused by entity reference cycles
https://notcve.org/view.php?id=CVE-2022-40304
01 Nov 2022 — An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked. Se descubrió un problema en libxml2 antes de la versión 2.10.3. Ciertas definiciones de entidades XML no válidas pueden dañar la clave de una tabla hash, lo que podría provocar errores lógicos posteriores. • https://packetstorm.news/files/id/169824 • CWE-415: Double Free •
CVSS: 7.4EPSS: 0%CPEs: 28EXPL: 4CVE-2022-29824 – libxml2: integer overflows in xmlBuf and xmlBuffer lead to out-of-bounds write
https://notcve.org/view.php?id=CVE-2022-29824
03 May 2022 — In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well. En libxml2 versiones anteriores a 2.9.14, varias funciones de manejo de búferes en buf.c (xmlBuf*) y tree.c (xmlBuffer*) no comprueban los desbor... • https://packetstorm.news/files/id/167345 • CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •
CVSS: 8.1EPSS: 0%CPEs: 58EXPL: 0CVE-2022-23308 – libxml2: Use-after-free of ID and IDREF attributes
https://notcve.org/view.php?id=CVE-2022-23308
26 Feb 2022 — valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes. El archivo valid.c en libxml2 versiones anteriores a 2.9.13, presenta un uso de memoria previamente liberada de los atributos ID e IDREF. A flaw was found in libxml2. A call to the xmlGetID function can return a pointer already freed when parsing an XML document with the XML_PARSE_DTDVALID option and without the XML_PARSE_NOENT option, resulting in a use-after-free issue. Red Hat JBoss Core Services is a set of supplementary s... • http://seclists.org/fulldisclosure/2022/May/33 • CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 27EXPL: 0CVE-2021-3541 – libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms
https://notcve.org/view.php?id=CVE-2021-3541
17 Jun 2021 — A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service. Se ha encontrado un fallo en libxml2. Es posible un ataque de expansión exponencial de entidades omitiendo todos los mecanismos de protección existentes y conllevando a una denegación de servicio Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to m... • https://bugzilla.redhat.com/show_bug.cgi?id=1950515 • CWE-400: Uncontrolled Resource Consumption CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') •