CVE-2020-14422 – python: DoS via inefficiency in IPv{4,6}Interface classes
https://notcve.org/view.php?id=CVE-2020-14422
Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2. La biblioteca Lib/ipaddress.py en Python versiones hasta 3.8.3, calcula inapropiadamente los valores de hash en las clases IPv4Interface e IPv6Interface, lo que podría permitir a un atacante remoto causar una denegación de servicio si una aplicación está afectada por el desempeño de un diccionario que contiene objetos de IPv4Interface o IPv6Interface, y este atacante puede causar que muchas entradas de diccionario sean creadas. Esto esta corregido en las versiones: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2 A vulnerability was found in the way the ipaddress python module computes hash values in the IPv4Interface and IPv6Interface classes. This flaw allows an attacker to create many dictionary entries, due to the performance of a dictionary containing the IPv4Interface or IPv6Interface objects, possibly resulting in a denial of service. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00041.html https://bugs.python.org/issue41004 https://github.com/python/cpython/pull/20956 https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html https://lists.debian.org/debian-lts-announce/2023/ • CWE-330: Use of Insufficiently Random Values CWE-400: Uncontrolled Resource Consumption CWE-682: Incorrect Calculation •
CVE-2019-9674
https://notcve.org/view.php?id=CVE-2019-9674
Lib/zipfile.py in Python through 3.7.2 allows remote attackers to cause a denial of service (resource consumption) via a ZIP bomb. La biblioteca Lib/zipfile.py en Python versiones hasta 3.7.2, permite a atacantes remotos causar una denegación de servicio (consumo de recursos) por medio de una bomba ZIP. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00041.html https://bugs.python.org/issue36260 https://bugs.python.org/issue36462 https://github.com/python/cpython/blob/master/Lib/zipfile.py https://python-security.readthedocs.io/security.html#archives-and-zip-bomb https://security.netapp.com/advisory/ntap-20200221-0003 https://usn.ubuntu.com/4428-1 https://www.python.org/news/security • CWE-400: Uncontrolled Resource Consumption •
CVE-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 •
CVE-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 • 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') •
CVE-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') •