Input validation error in Python - CVE-2019-16056
Published: November 10, 2019
Vulnerability identifier: #VU22617
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-16056
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Python.org
Affected software:
Python
Python
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input when processing multiple occurrences of the "@" character in an email address. 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.
How to mitigate CVE-2019-16056
Install updates from vendor's website.