vulnerability

Ubuntu: (Multiple Advisories) (CVE-2018-20852): Python vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Jul 13, 2019
Added
Sep 10, 2019
Modified
Nov 27, 2024

Description

http.cookiejar.DefaultPolicy.domain_return_ok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has another valid hostname as a suffix (e.g., pythonicexample.com to steal cookies for example.com). When a program uses http.cookiejar.DefaultPolicy and tries to do an HTTP connection to an attacker-controlled server, existing cookies can be leaked to the attacker. This affects 2.x through 2.7.16, 3.x before 3.4.10, 3.5.x before 3.5.7, 3.6.x before 3.6.9, and 3.7.x before 3.7.3.

Solution(s)

ubuntu-pro-upgrade-python2-7ubuntu-pro-upgrade-python2-7-minimalubuntu-pro-upgrade-python3-4ubuntu-pro-upgrade-python3-4-minimalubuntu-pro-upgrade-python3-5ubuntu-pro-upgrade-python3-5-minimalubuntu-pro-upgrade-python3-6ubuntu-pro-upgrade-python3-6-minimalubuntu-pro-upgrade-python3-7ubuntu-pro-upgrade-python3-7-minimal
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