CVSS: 7.8EPSS: %CPEs: 2EXPL: 0CVE-2024-56171
https://notcve.org/view.php?id=CVE-2024-56171
18 Feb 2025 — libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used. • https://gitlab.gnome.org/GNOME/libxml2/-/issues/828 • CWE-416: Use After Free •
CVSS: 7.8EPSS: %CPEs: 2EXPL: 0CVE-2025-24928
https://notcve.org/view.php?id=CVE-2025-24928
18 Feb 2025 — libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE: this is similar to CVE-2017-9047. • https://gitlab.gnome.org/GNOME/libxml2/-/issues/847 • CWE-121: Stack-based Buffer Overflow •
CVSS: 2.9EPSS: %CPEs: 2EXPL: 0CVE-2025-27113
https://notcve.org/view.php?id=CVE-2025-27113
18 Feb 2025 — libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in pattern.c. • https://gitlab.gnome.org/GNOME/libxml2/-/issues/861 • CWE-476: NULL Pointer Dereference •
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 •