|Description||A security regression of CVE-2019-9636 was discovered in python since commit d537ab0ff9767ef024f26246899728f0116b1ec3 affecting versions 2.7, 3.5, 3.6, 3.7 and from v3.8.0a4 through v3.8.0b1, which still allows an attacker to exploit CVE-2019-9636 by abusing the user and password parts of a URL. When an application parses user-supplied URLs to store cookies, authentication credentials, or other kind of information, it is possible for an attacker to provide specially crafted URLs to make the application locate host-related information (e.g. cookies, authentication data) and send them to a different host than where it should, unlike if the URLs had been correctly parsed. The result of an attack may vary based on the application.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)|
Vulnerable and fixed packages
The table below lists information on source packages.
The information below is based on the following data on fixed versions.
- python3.6 <not-affected> (Fix for CVE-2019-9636 not applied)
- python3.4 <not-affected> (Vulnerable fix to regression introduced by fix for CVE-2019-9636 not applied)
[stretch] - python2.7 <not-affected> (Incomplete fix for CVE-2019-9636 not applied)
[jessie] - python2.7 <not-affected> (Incomplete fix for CVE-2019-9636 not applied)
Introduced by: https://github.com/python/cpython/commit/d537ab0ff9767ef024f26246899728f0116b1ec3 (v3.8.0a4)
Fixed by: https://github.com/python/cpython/commit/8d0ef0b5edeae52960c7ed05ae8a12388324f87e (v3.8.0b1)
Patches for 2.7: