CVSS: 6.5EPSS: 0%CPEs: 32EXPL: 0CVE-2017-1000101 – curl: URL globbing out of bounds read
https://notcve.org/view.php?id=CVE-2017-1000101
curl supports "globbing" of URLs, in which a user can pass a numerical range to have the tool iterate over those numbers to do a sequence of transfers. In the globbing function that parses the numerical range, there was an omission that made curl read a byte beyond the end of the URL if given a carefully crafted, or just wrongly written, URL. The URL is stored in a heap based buffer, so it could then be made to wrongly read something else instead of crashing. An example of a URL that triggers the flaw would be `http://ur%20[0-60000000000000000000`. curl es compatible con el "globbing" de URL, donde un usuario puede pasar un rango numérico para hacer que la herramienta itere sobre esos números para realizar una secuencia de transferencias. En la función de "globbing" que analiza sintácticamente el rango numérico, hay una omisión que hace que curl lea un byte más allá del fin de la URL si se proporciona una URL manipulada o simplemente mal escrita. • http://www.debian.org/security/2017/dsa-3992 http://www.securityfocus.com/bid/100249 http://www.securitytracker.com/id/1039117 https://access.redhat.com/errata/RHSA-2018:3558 https://curl.haxx.se/docs/adv_20170809A.html https://security.gentoo.org/glsa/201709-14 https://support.apple.com/HT208221 https://access.redhat.com/security/cve/CVE-2017-1000101 https://bugzilla.redhat.com/show_bug.cgi?id=1478309 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •
CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0CVE-2017-9502
https://notcve.org/view.php?id=CVE-2017-9502
In curl before 7.54.1 on Windows and DOS, libcurl's default protocol function, which is the logic that allows an application to set which protocol libcurl should attempt to use when given a URL without a scheme part, had a flaw that could lead to it overwriting a heap based memory buffer with seven bytes. If the default protocol is specified to be FILE or a file: URL lacks two slashes, the given "URL" starts with a drive letter, and libcurl is built for Windows or DOS, then libcurl would copy the path 7 bytes off, so that the end of the given path would write beyond the malloc buffer (7 bytes being the length in bytes of the ascii string "file://"). En curl en sus versiones anteriores a la 7.54.1 de Windows y DOS, la función libcurl de protocolo por defecto, el cual es lógico que permita una aplicación poner que protocolo libcurl debe intentar usar cuando una URL le es dada sin una parte diseñada, tiene un flaw que podría llevar a sobrescribir buffer heap --heap-- con siete bytes. Si se especifica que el protocolo sea FILE o un archivo: A la URL le faltan dos barras, la URL dada comienza con una letra de unidad, y libcurl es construida para Windows o DOS, entonces libcurl copiaría la ruta de 7bytes, asique el final de la ruta dada escribiría mas allá del buffer reservado (7 bytes son la longitud de la cadena ASCII "file://"). • http://openwall.com/lists/oss-security/2017/06/14/1 http://www.securityfocus.com/bid/99120 http://www.securitytracker.com/id/1038697 https://curl.haxx.se/docs/adv_20170614.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2017-2629
https://notcve.org/view.php?id=CVE-2017-2629
curl before 7.53.0 has an incorrect TLS Certificate Status Request extension feature that asks for a fresh proof of the server's certificate's validity in the code that checks for a test success or failure. It ends up always thinking there's valid proof, even when there is none or if the server doesn't support the TLS extension in question. This could lead to users not detecting when a server's certificate goes invalid or otherwise be mislead that the server is in a better shape than it is in reality. This flaw also exists in the command line tool (--cert-status). curl en versiones anteriores a la 7.53.0 tiene una característica de extensión TLS Certificate Status Request que solicita una nueva prueba de la validez del certificado del servidor en el código que comprueba el éxito o el fracaso de una prueba. Acaba siempre pensando que hay pruebas válidas, incluso cuando no hay ninguna o si el servidor no soporta la extensión TLS en cuestión. • http://www.securityfocus.com/bid/96382 http://www.securitytracker.com/id/1037871 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2629 https://curl.haxx.se/docs/adv_20170222.html https://security.gentoo.org/glsa/201703-04 https://www.tenable.com/security/tns-2017-09 • CWE-295: Improper Certificate Validation •
CVSS: 8.1EPSS: 1%CPEs: 1EXPL: 0CVE-2016-9594
https://notcve.org/view.php?id=CVE-2016-9594
curl before version 7.52.1 is vulnerable to an uninitialized random in libcurl's internal function that returns a good 32bit random value. Having a weak or virtually non-existent random value makes the operations that use it vulnerable. curl, en versiones anteriores a la 7.52.1, es vulnerable a un valor aleatorio no inicializado en la función interna de libcurl que devuelve un valor aleatorio bueno de 32 bits. Tener un valor aleatorio débil o virtualmente inexistente hace que las operaciones que lo usan sean vulnerables. • http://www.securityfocus.com/bid/95094 http://www.securitytracker.com/id/1037528 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9594 https://curl.haxx.se/docs/adv_20161223.html https://security.gentoo.org/glsa/201701-47 https://www.tenable.com/security/tns-2017-04 • CWE-665: Improper Initialization •
CVSS: 8.1EPSS: 1%CPEs: 1EXPL: 0CVE-2016-9586 – curl: printf floating point buffer overflow
https://notcve.org/view.php?id=CVE-2016-9586
curl before version 7.52.0 is vulnerable to a buffer overflow when doing a large floating point output in libcurl's implementation of the printf() functions. If there are any application that accepts a format string from the outside without necessary input filtering, it could allow remote attacks. curl, en versiones anteriores a la 7.52.0, es vulnerable a un desbordamiento de búfer cuando se realiza un envío de un gran puntero flotante en la implementación de libcurl de la función printf(). Si hay aplicaciones que acepten una cadena de formato externa sin necesitar un filtrado de entrada, podría permitir ataques remotos. • http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/95019 http://www.securitytracker.com/id/1037515 https://access.redhat.com/errata/RHSA-2018:3558 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9586 https://curl.haxx.se/docs/adv_20161221A.html https://github.com/curl/curl/commit/curl-7_51_0-162-g3ab3c16 https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E https • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •