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CVE-2018-9251 – libxml2: infinite loop in xz_decomp function in xzlib.c
https://notcve.org/view.php?id=CVE-2018-9251
04 Apr 2018 — The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035. La función xz_decomp en xzlib.c en libxml2 2.9.8, si se emplea --with-lzma, permite que atacantes remotos provoquen una denegación de servicio (bucle infinito) mediante un archivo XML manipulado que desencadena LZMA_MEMLIMIT_ERROR, tal... • https://bugzilla.gnome.org/show_bug.cgi?id=794914 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
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CVE-2017-15412 – libxml2: Use after free in xmlXPathCompOpEvalPositionalPredicate() function in xpath.c
https://notcve.org/view.php?id=CVE-2017-15412
07 Dec 2017 — Use after free in libxml2 before 2.9.5, as used in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Uso de memoria previamente liberada en libxml2 en versiones anteriores a la 2.9.5, tal y como se emplea en Google Chrome en versiones anteriores a la 63.0.3239.84 y otros productos, permitía que un atacante remoto pudiese explotar una corrupción de memoria dinámica (heap) mediante una página HTML manipulada. A use... • http://www.securitytracker.com/id/1040348 • CWE-416: Use After Free •
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CVE-2017-16932 – Ubuntu Security Notice USN-3504-1
https://notcve.org/view.php?id=CVE-2017-16932
23 Nov 2017 — parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities. parser.c en libxml2 en versiones anteriores a la 2.9.5 no evita la recursión infinita en las entidades de parámetro. Matias Brutti discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to expose sensitive information. It was discovered that libxml2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. • http://xmlsoft.org/news.html • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
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CVE-2017-16931
https://notcve.org/view.php?id=CVE-2017-16931
23 Nov 2017 — parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name. parser.c en libxml2 en versiones anteriores a la 2.9.5 gestiona de manera incorrecta las referencias de entidades de parámetro debido a que la macro NEXTL llama a la función xmlParserHandlePEReference en caso de que haya un carácter "%" en un nombre DTD. • http://xmlsoft.org/news.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
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CVE-2017-5130 – chromium-browser: heap overflow in libxml2
https://notcve.org/view.php?id=CVE-2017-5130
20 Oct 2017 — An integer overflow in xmlmemory.c in libxml2 before 2.9.5, as used in Google Chrome prior to 62.0.3202.62 and other products, allowed a remote attacker to potentially exploit heap corruption via a crafted XML file. Un desbordamiento de enteros en xmlmemory.c en versiones anteriores a la 2.9.5 de libxml2, tal y como se emplea en Google Chrome, en versiones anteriores a la 62.0.3202.62 y en otros productos, permite que un atacante remoto explote la corrupción de la memoria dinámica (heap) mediante un archivo... • http://bugzilla.gnome.org/show_bug.cgi?id=783026 • CWE-787: Out-of-bounds Write •
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CVE-2017-7375 – Ubuntu Security Notice USN-3424-2
https://notcve.org/view.php?id=CVE-2017-7375
19 Sep 2017 — A flaw in libxml2 allows remote XML entity inclusion with default parser flags (i.e., when the caller did not request entity substitution, DTD validation, external DTD subset loading, or default DTD attributes). Depending on the context, this may expose a higher-risk attack surface in libxml2 not usually reachable with default parser flags, and expose content from local files, HTTP, or FTP servers (which might be otherwise unreachable). Un error en libxml2 permite la inclusión de entidades XML con marcas de... • http://www.securityfocus.com/bid/98877 • CWE-611: Improper Restriction of XML External Entity Reference •
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CVE-2017-7376 – Ubuntu Security Notice USN-3424-2
https://notcve.org/view.php?id=CVE-2017-7376
19 Sep 2017 — Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects. Desbordamiento de búfer en libxml2 permite que atacantes remotos ejecuten código arbitrario aprovechando un límite incorrecto para los valores del puerto cuando se gestionan las redirecciones. It was discovered that a type confusion error existed in libxml2. An attacker could use this to specially construct XML data that could cause a denial of service or pos... • https://github.com/brahmstaedt/libxml2-exploit • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
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CVE-2017-9048 – libxml2: Stack-based buffer overflow in function xmlSnprintfElementContent
https://notcve.org/view.php?id=CVE-2017-9048
18 May 2017 — libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash. En libxml2 versión 20904-GITv2.9.4-16-g0741801 es vulnerable a un ... • http://www.debian.org/security/2017/dsa-3952 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-121: Stack-based Buffer Overflow •
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CVE-2017-9047 – libxml2: Buffer overflow in function xmlSnprintfElementContent
https://notcve.org/view.php?id=CVE-2017-9047
18 May 2017 — A buffer overflow was discovered in libxml2 20904-GITv2.9.4-16-g0741801. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. The variable len is assigned strlen(buf). If the content->type is XML_ELEMENT_CONTENT_ELEMENT, then (i) the content->prefix is appended to buf (if it actually fits) whereupon (ii) content->name is written to the buffer. However, the check for whether the content->name actually fits al... • http://www.debian.org/security/2017/dsa-3952 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •
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CVE-2017-9050 – libxml2: Heap-based buffer over-read in function xmlDictAddString
https://notcve.org/view.php?id=CVE-2017-9050
18 May 2017 — libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839. libxml2 20904-GIT versión 2.9.4-16-g0741801, es vulnerable a una lectura excesiva de búfer en la región heap de la memoria en la función xmlDictAddString en el archivo dict.c. Esta vulnerabilidad causa que los programas que utilizan li... • http://www.debian.org/security/2017/dsa-3952 • CWE-125: Out-of-bounds Read •