Reliance on Untrusted Inputs in a Security Decision in Mozilla Firefox - CVE-2019-17019
Published: January 7, 2020 / Updated: January 8, 2020
Vulnerability identifier: #VU24057
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-17019
CWE-ID: CWE-807
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to incorrect processing of Python scripts. When Python is installed on Windows operating system, a python file being served with the MIME type of text/plain could be executed by Python instead of being opened as a text file when the Open option was selected upon download.
How to mitigate CVE-2019-17019
Install updates from vendor's website.