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-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 •
CVE-2019-13404
https://notcve.org/view.php?id=CVE-2019-13404
The MSI installer for Python through 2.7.16 on Windows defaults to the C:\Python27 directory, which makes it easier for local users to deploy Trojan horse code. (This also affects old 3.x releases before 3.5.) NOTE: the vendor's position is that it is the user's responsibility to ensure C:\Python27 access control or choose a different directory, because backwards compatibility requires that C:\Python27 remain the default for 2.7.x ** EN DISPUTA ** El instalador de MSI para Python mediante la versión 2.7.16 en Windows utiliza por defecto el directorio C: \ Python27, lo que facilita que los usuarios locales implementen el código Trojan Horse. (Esto también afecta a las versiones anteriores de la versión 3.x anteriores a la 3.5). NOTA: la posición del proveedor es que es responsabilidad del usuario garantizar el control de acceso C: \ Python27 o elegir un directorio diferente, ya que la compatibilidad con versiones anteriores requiere que C: \ Python27 siga siendo el por defecto para 2.7.x. • https://github.com/alidnf/CVE-2019-13404 https://docs.python.org/2/faq/windows.html • CWE-552: Files or Directories Accessible to External Parties •
CVE-2018-1061 – python: DOS via regular expression backtracking in difflib.IS_LINE_JUNK method in difflib
https://notcve.org/view.php?id=CVE-2018-1061
python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in the difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service. python en versiones anteriores a la 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 y 3.7.0 es vulnerable a backtracking catastrófico en el método difflib.IS_LINE_JUNK. Un atacante podría utilizar este fallo para provocar una denegación de servicio (DoS). A flaw was found in the way catastrophic backtracking was implemented in python's difflib.IS_LINE_JUNK method. An attacker could use this flaw to cause denial of service. • http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html http://www.securitytracker.com/id/1042001 https://access.redhat.com/errata/RHBA-2019:0327 https://access.redhat.com/errata/RHSA-2018:3041 https://access.redhat.com/errata/RHSA-2018:3505 https://access.redhat.com/errata/RHSA-2019:1260 https://access.redhat.com/errata/RHSA-2019:3725 https://bugs.python.org/issue32981 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1061 https://docs.python.org/ • CWE-20: Improper Input Validation •
CVE-2017-18207
https://notcve.org/view.php?id=CVE-2017-18207
The Wave_read._read_fmt_chunk function in Lib/wave.py in Python through 3.6.4 does not ensure a nonzero channel value, which allows attackers to cause a denial of service (divide-by-zero and exception) via a crafted wav format audio file. NOTE: the vendor disputes this issue because Python applications "need to be prepared to handle a wide variety of exceptions. ** EN DISPUTA ** La función Wave_read._read_fmt_chunk en Lib/wave.py en Python, hasta la versión 3.6.4, no garantiza un valor de canal nonzero, lo que permite que atacantes remotos provoquen una denegación de servicio (error de división entre cero y cierre inesperado de la aplicación) mediante un archivo de audio wav manipulado. NOTA: el vendedor informa que las aplicaciones de Python "necesitan estar preparadas para manejar una amplia variedad de excepciones". • http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html https://bugs.python.org/issue32056 • CWE-369: Divide By Zero •