CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 1CVE-2024-25062 – libxml2: use-after-free in XMLReader
https://notcve.org/view.php?id=CVE-2024-25062
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 de xmlValidatePopElement. A use-after-free flaw was found in libxml2. • https://gitlab.gnome.org/GNOME/libxml2/-/issues/604 https://gitlab.gnome.org/GNOME/libxml2/-/tags https://access.redhat.com/security/cve/CVE-2024-25062 https://bugzilla.redhat.com/show_bug.cgi?id=2262726 • CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2023-45322
https://notcve.org/view.php?id=CVE-2023-45322
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: la posición del proveedor es "No creo que estos problemas sean lo suficientemente críticos como para justificar un ID CVE... porque un atacante normalmente no puede controlar cuándo fallan las asignaciones de memoria". • http://www.openwall.com/lists/oss-security/2023/10/06/5 https://gitlab.gnome.org/GNOME/libxml2/-/issues/344 https://gitlab.gnome.org/GNOME/libxml2/-/issues/583 • CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 0CVE-2023-29469 – libxml2: Hashing of empty dict strings isn't deterministic
https://notcve.org/view.php?id=CVE-2023-29469
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, xmlDictComputeFastKey could produce inconsistent results, which may lead to various logic or memory errors, including double free errors. • https://gitlab.gnome.org/GNOME/libxml2/-/issues/510 https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4 https://lists.debian.org/debian-lts-announce/2023/04/msg00031.html https://security.netapp.com/advisory/ntap-20230601-0006 https://access.redhat.com/security/cve/CVE-2023-29469 https://bugzilla.redhat.com/show_bug.cgi?id=2185984 • CWE-20: Improper Input Validation CWE-415: Double Free •
CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 1CVE-2023-28484 – libxml2: NULL dereference in xmlSchemaFixupComplexType
https://notcve.org/view.php?id=CVE-2023-28484
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. • https://gitlab.gnome.org/GNOME/libxml2/-/issues/491 https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4 https://lists.debian.org/debian-lts-announce/2023/04/msg00031.html https://security.netapp.com/advisory/ntap-20230601-0006 https://security.netapp.com/advisory/ntap-20240201-0005 https://access.redhat.com/security/cve/CVE-2023-28484 https://bugzilla.redhat.com/show_bug.cgi?id=2185994 • CWE-20: Improper Input Validation CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 0CVE-2022-40304 – libxml2: dict corruption caused by entity reference cycles
https://notcve.org/view.php?id=CVE-2022-40304
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. • http://seclists.org/fulldisclosure/2022/Dec/21 http://seclists.org/fulldisclosure/2022/Dec/24 http://seclists.org/fulldisclosure/2022/Dec/25 http://seclists.org/fulldisclosure/2022/Dec/26 http://seclists.org/fulldisclosure/2022/Dec/27 https://gitlab.gnome.org/GNOME/libxml2/-/commit/1b41ec4e9433b05bb0376be4725804c54ef1d80b https://gitlab.gnome.org/GNOME/libxml2/-/tags https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3 https://security.netapp.com/advisory/ntap-20221209-0003 • CWE-415: Double Free •