python python CVE-2019-9636 vulnerability in Python and Other Products
Published on March 8, 2019

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Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization. The impact is: Information disclosure (credentials, cookies, etc. that are cached against a given hostname). The components are: urllib.parse.urlsplit, urllib.parse.urlparse. The attack vector is: A specially crafted URL could be incorrectly parsed to locate cookies or authentication data and send that information to a different host than when parsed correctly. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

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Vulnerability Analysis

CVE-2019-9636 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
LOW
Integrity Impact:
NONE
Availability Impact:
NONE

Weakness Type

Improper Handling of Alternate Encoding

The software does not properly handle when an input uses an alternate encoding that is valid for the control sphere to which the input is being sent.


Products Associated with CVE-2019-9636

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2019-9636 are published in these products:

Python
 
Fedora Project Fedora
 
OpenSuse Leap
 
Red Hat Enterprise Linux (RHEL)
 
Red Hat Enterprise Linux Desktop
 
Red Hat Enterprise Linux Server
 
Red Hat Enterprise Linux Server Aus
 
Red Hat Enterprise Linux Server Eus
 
Red Hat Enterprise Linux Server Tus
 
Red Hat Enterprise Linux Workstation
 
Debian Linux
 
Canonical Ubuntu Linux
 
Red Hat Enterprise Linux Eus
 
Red Hat Openshift Container Platform
 
Oracle Sun Zfs Storage Appliance Kit
 

Exploit Probability

EPSS
7.67%
Percentile
94.54%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.