CVSS: 7.1EPSS: 0%CPEs: 15EXPL: 1CVE-2020-8492 – python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS
https://notcve.org/view.php?id=CVE-2020-8492
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking. Python versiones 2.7 hasta 2.7.17, versiones 3.5 hasta 3.5.9, versiones 3.6 hasta 3.6.10, versiones 3.7 hasta 3.7.6 y versiones 3.8 hasta 3.8.1, permiten a un servidor HTTP conducir ataques de Denegación de Servicio de Expresión Regular (ReDoS) contra un cliente debido a un backtracking catastrófico de la clase urllib.request.AbstractBasicAuthHandler. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00003.html https://bugs.python.org/issue39503 https://github.com/python/cpython/pull/18284 https://lists.apache.org/thread.html/rdb31a608dd6758c6093fd645aea3fbf022dd25b37109b6aaea5bc0b5%40%3Ccommits.cassandra.apache.org%3E https://lists.apache.org/thread.html/rfec113c733162b39633fd86a2d0f34bf42ac35f711b3ec1835c774da%40%3Ccommits.cassandra.apache.org%3E https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html https://lists.debian.org/debian-lts-announce/2023/05& • CWE-400: Uncontrolled Resource Consumption •
CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 0CVE-2019-18348 – python: CRLF injection via the host part of the url passed to urlopen()
https://notcve.org/view.php?id=CVE-2019-18348
An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r\n (specifically in the host component of a URL) followed by an HTTP header. This is similar to the CVE-2019-9740 query string issue and the CVE-2019-9947 path string issue. (This is not exploitable when glibc has CVE-2016-10739 fixed.). This is fixed in: v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1; v3.6.11, v3.6.11rc1, v3.6.12; v3.7.8, v3.7.8rc1, v3.7.9; v3.8.3, v3.8.3rc1, v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1. • http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00041.html https://bugs.python.org/issue30458#msg347282 https://bugzilla.redhat.com/show_bug.cgi?id=1727276 https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A5NSAX4SC3V64PGZUPH7PRDLSON34Q5A https://lists.fedoraproject.org/archives&#x • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') •
CVSS: 6.1EPSS: 0%CPEs: 10EXPL: 2CVE-2019-16935 – python: XSS vulnerability in the documentation XML-RPC server in server_title field
https://notcve.org/view.php?id=CVE-2019-16935
The documentation XML-RPC server in Python through 2.7.16, 3.x through 3.6.9, and 3.7.x through 3.7.4 has XSS via the server_title field. This occurs in Lib/DocXMLRPCServer.py in Python 2.x, and in Lib/xmlrpc/server.py in Python 3.x. If set_server_title is called with untrusted input, arbitrary JavaScript can be delivered to clients that visit the http URL for this server. La documentación del servidor XML-RPC en Python versiones hasta 2.7.16, versiones 3.x hasta 3.6.9 y versiones 3.7.x hasta 3.7.4, presenta una vulnerabilidad de tipo XSS por medio del campo server_title. Esto ocurre en Lib/DocXMLRPCServer.py en Python versión 2.x, y en Lib/xmlrpc/server.py en Python versión 3.x. • http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html https://bugs.python.org/issue38243 https://github.com/python/cpython/blob/35c0809158be7feae4c4f877a08b93baea2d8291/Lib/xmlrpc/server.py#L897 htt • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 7.5EPSS: 0%CPEs: 28EXPL: 0CVE-2019-16056 – python: email.utils.parseaddr wrongly parses email addresses
https://notcve.org/view.php?id=CVE-2019-16056
An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally. Se descubrió un problema en Python versiones hasta 2.7.16, versiones 3.x hasta 3.5.7, versiones 3.6.x hasta 3.6.9 y versiones 3.7.x hasta 3.7.4. • http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html https://access.redhat.com/errata/RHSA-2019:3725 https://access.redhat.com/errata/RHSA-2019:3948 https://bugs.python.org/issue • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 0%CPEs: 5EXPL: 1CVE-2019-15903 – expat: heap-based buffer over-read via crafted XML input
https://notcve.org/view.php?id=CVE-2019-15903
In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read. En libexpat versiones anteriores a 2.2.8, una entrada XML especialmente diseñada podría engañar al analizador para que cambie de análisis DTD a análisis de documentos demasiado pronto; una llamada consecutiva a la función XML_GetCurrentLineNumber (o XML_GetCurrentColumnNumber) luego resultó en una lectura excesiva del búfer en la región heap de la memoria. • http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00080.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00081.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00013.html http://lists.opensuse.org/opensuse-security-announce/2019-11 • CWE-125: Out-of-bounds Read CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') •