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CVSS: 9.8EPSS: 6%CPEs: 2EXPL: 0

12 Mar 2018 — The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, allows remote attackers to obtain sensitive information, cause a denial of service (crash), or possibly have unspecified other impact via a wildcard certificate name, which triggers an out-of-bounds read. La función verify_certificate en lib/vtls/schannel.c en libcurl, desde la versión 7.30.0 hasta la 7.51.0, cuando se construye para Windows CE usando el backend ... • https://curl.haxx.se/CVE-2016-9952.patch • CWE-125: Out-of-bounds Read •

CVSS: 8.1EPSS: 4%CPEs: 2EXPL: 0

12 Mar 2018 — The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, makes it easier for remote attackers to conduct man-in-the-middle attacks via a crafted wildcard SAN in a server certificate, as demonstrated by "*.com." La función verify_certificate en lib/vtls/schannel.c en libcurl, desde la versión 7.30.0 hasta la 7.51.0, cuando se construye para Windows CE usando el backend TLS schannel, facilita la ejecución de ataques Man-... • https://curl.haxx.se/CVE-2016-9952.patch • CWE-295: Improper Certificate Validation •

CVSS: 9.8EPSS: 3%CPEs: 38EXPL: 0

24 Jan 2018 — libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties. When asked to send custom headers in its HTTP requests, libcurl will send that set of headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the `Location:` response header value. Sending the same set of headers to subsequent hosts is in particular a problem for applications that pass on custom `Authorization:` headers... • http://www.openwall.com/lists/oss-security/2022/04/27/4 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 9.8EPSS: 0%CPEs: 4EXPL: 0

29 Nov 2017 — curl and libcurl before 7.57.0 on 32-bit platforms allow attackers to cause a denial of service (out-of-bounds access and application crash) or possibly have unspecified other impact because too little memory is allocated for interfacing to an SSL library. curl y libcurl en versiones anteriores a la 7.57.0 en plataformas de 32 bits permiten que los atacantes provoquen una denegación de servicio (acceso fuera de límites y cierre inesperado de la aplicación) o, posiblemente, provoquen otro impacto porque se a... • http://security.cucumberlinux.com/security/details.php?id=163 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 9.8EPSS: 0%CPEs: 4EXPL: 0

29 Nov 2017 — The NTLM authentication feature in curl and libcurl before 7.57.0 on 32-bit platforms allows attackers to cause a denial of service (integer overflow and resultant buffer overflow, and application crash) or possibly have unspecified other impact via vectors involving long user and password fields. La característica de autenticación NTLM en curl y libcurl en versiones anteriores a la 7.57.0 en plataformas de 32-bits permite que los atacantes provoquen una denegación de servicio (desbordamiento de enteros y d... • http://security.cucumberlinux.com/security/details.php?id=161 • CWE-122: Heap-based Buffer Overflow CWE-190: Integer Overflow or Wraparound •

CVSS: 9.8EPSS: 1%CPEs: 4EXPL: 0

29 Nov 2017 — The FTP wildcard function in curl and libcurl before 7.57.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) or possibly have unspecified other impact via a string that ends with an '[' character. La función FTP wildcard en curl y libcurl en versiones anteriores a la 7.57.0 permite que atacantes remotos provoquen una denegación de servicio (lectura fuera de límites y cierre inesperado de aplicación) o, probablemente, causen cualquier otro tipo de impacto median... • http://security.cucumberlinux.com/security/details.php?id=162 • CWE-125: Out-of-bounds Read •

CVSS: 6.5EPSS: 0%CPEs: 32EXPL: 0

09 Aug 2017 — 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... • http://www.debian.org/security/2017/dsa-3992 • 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: 0

14 Jun 2017 — 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 byt... • http://openwall.com/lists/oss-security/2017/06/14/1 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 2.4EPSS: 0%CPEs: 1EXPL: 0

03 Apr 2017 — The ourWriteOut function in tool_writeout.c in curl 7.53.1 might allow physically proximate attackers to obtain sensitive information from process memory in opportunistic circumstances by reading a workstation screen during use of a --write-out argument ending in a '%' character, which leads to a heap-based buffer over-read. La función ourWriteOut en tool_writeout.c en curl 7.53.1 podría permitir que los atacantes físicamente próximos obtengan información sensible de la memoria del proceso en circunstancias... • http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •

CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0

28 Mar 2017 — 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 ... • http://www.securityfocus.com/bid/96382 • CWE-295: Improper Certificate Validation •