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CVSS: 7.5EPSS: 1%CPEs: 9EXPL: 1

19 Jul 2017 — XML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the parser in an infinite loop using a malformed external entity definition from an external DTD. Una vulnerabilidad de XML External Entity (XEE) en libexpat versión 2.2.0 y anteriores (Expat XML Parser Library) permite que los atacantes consigan que el analizador entre en un bucle infinito utilizando una definición de entidad externa mal formada desde una DTD externa. It was discovered that Ex... • http://www.debian.org/security/2017/dsa-3898 • CWE-611: Improper Restriction of XML External Entity Reference CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 9.8EPSS: 1%CPEs: 9EXPL: 0

19 Nov 2016 — An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50. Desbordamiento de enteros durante el análisis de XML mediante la biblioteca Expat. La vulnerabilidad afecta a Firefox en versiones anteriores a la 50. Christian Holler, Andrew McCreight, Dan Minor, Tyson Smith, Jon Coppeard, Jan-Ivar Bruaroey, Jesse Ruderman, Markus Stange, Olli Pettay, Ehsan Akhgari, Gary Kwong, Tooru Fujisawa, and Randell Jesup discovered multiple memory safety issues in Firefox... • http://www.securityfocus.com/bid/94337 • CWE-190: Integer Overflow or Wraparound •

CVSS: 10.0EPSS: 1%CPEs: 30EXPL: 1

02 Sep 2016 — Integer overflow in the get_data function in zipimport.c in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 allows remote attackers to have unspecified impact via a negative data size value, which triggers a heap-based buffer overflow. Desbordamiento de entero en la función get_data en zipimport.c en CPython (también conocido como Python) en versiones anteriores a 2.7.12, 3.x en versiones anteriores a 3.4.5 y 3.5.x en versiones anteriores a 3.5.2 permite a atacantes remotos tene... • https://github.com/insuyun/CVE-2016-5636 • CWE-122: Heap-based Buffer Overflow CWE-190: Integer Overflow or Wraparound •

CVSS: 7.5EPSS: 4%CPEs: 45EXPL: 2

01 Sep 2016 — The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other protocols and products, have a birthday bound of approximately four billion blocks, which makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTPS session using Triple DES in CBC mode, aka a "Sweet32" attack. Los cifrados DES y Triple DES, como se usan en los protocolos TLS, SSH e IPSec y otros protocolos y productos, tienen ... • https://packetstorm.news/files/id/142756 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-327: Use of a Broken or Risky Cryptographic Algorithm •

CVSS: 6.5EPSS: 1%CPEs: 30EXPL: 1

21 Aug 2016 — The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an error when StartTLS fails, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack." La librería smtplib en CPython (también conocido como Python) en versiones anteriores a 2.7.12, 3.x en versiones anteriores a 3.4.5 y 3.5.x en versiones an... • https://www.exploit-db.com/exploits/43500 • CWE-693: Protection Mechanism Failure •

CVSS: 6.1EPSS: 0%CPEs: 27EXPL: 3

21 Aug 2016 — CRLF injection vulnerability in the HTTPConnection.putheader function in urllib2 and urllib in CPython (aka Python) before 2.7.10 and 3.x before 3.4.4 allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in a URL. Vulnerabilidad de inyección CRLF en la función HTTPConnection.putheader en urllib2 y urllib en CPython (también conocido como Python) en versiones anteriores a 2.7.10 y 3.x en versiones anteriores a 3.4.4 permite a atacantes remotos inyectar cabeceras HTTP arbitrarias a trav... • https://github.com/bunseokbot/CVE-2016-5699-poc • CWE-20: Improper Input Validation CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') •

CVSS: 6.1EPSS: 8%CPEs: 8EXPL: 0

21 Aug 2016 — The CGIHandler class in Python before 2.7.12 does not protect against the HTTP_PROXY variable name clash in a CGI script, which could allow a remote attacker to redirect HTTP requests. La clase CGIHandler en Python versiones anteriores a la versión 2.7.12, no protege contra el conflicto de nombre de la variable HTTP_PROXY en un script CGI, lo que podría permitir a un atacante remoto redireccionar las peticiones HTTP. It was discovered that the Python CGIHandler class did not properly protect against the HTT... • http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html • CWE-20: Improper Input Validation CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVSS: 8.1EPSS: 1%CPEs: 8EXPL: 0

21 Jun 2016 — The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716. La protección de desbordamiento en Expat es eliminada por los compiladores con ciertos ajustes de optimización, lo que permite a atacantes remotos provocar una denegación de servicio (caída) o posi... • http://www.securityfocus.com/bid/91528 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 5.9EPSS: 0%CPEs: 26EXPL: 0

31 May 2016 — The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate. La función ssl.match_hostname en CPython (también concida como Python) en versiones anteriores a 2.7.9 y 3.x en versiones anteriores a 3.3.3 no maneja correctamente comodines en los nombres de host, lo que podría permitir a atacantes man-in-the-middle suplantar servidores a través d... • http://seclists.org/oss-sec/2015/q2/483 • CWE-19: Data Processing Errors •

CVSS: 9.8EPSS: 2%CPEs: 26EXPL: 1

18 May 2016 — Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a malformed input document, which triggers a buffer overflow. Expat permite a atacantes dependientes del contexto provocar una denegación de servicio (caída) o posiblemente ejecutar código arbitrario a través de un documento de entrada mal formado, lo que desencadena un desbordamiento de buffer. An out-of-bounds read flaw was found in the way Expat processed certain input. A remote attacker c... • https://packetstorm.news/files/id/141350 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •