python python CVE-2019-16056 vulnerability in Python and Other Products
Published on September 6, 2019

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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.

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Vulnerability Analysis

CVE-2019-16056 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 no impact on confidentiality, with no impact on integrity, and no impact on availability.

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

Weakness Type

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.


Products Associated with CVE-2019-16056

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2019-16056 are published in these products:

Python
 
Fedora Project Fedora
 
Debian Linux
 
Canonical Ubuntu Linux
 
Red Hat Software Collections
 
Oracle Solaris
 
Oracle Peoplesoft Enterprise Peopletools
 
Oracle Communications Operations Monitor
 
Oracle Zfs Storage Appliance Kit
 
OpenSuse Leap
 

Exploit Probability

EPSS
5.37%
Percentile
92.43%

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.