Input validation error in Flask - CVE-2019-1010083

Vulnerability identifier: #VU19269

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-1010083

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the package allows for unsafe encoded JSON data to be decoded. A remote attacker can perform a denial of service attack on the affected system.

Flask
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
F5OS
Public Cloud Module
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP Applications
BIG-IQ Centralized Management
python3-Flask
python-Flask
QRadar Assistant

Install updates from vendor's website.

Flask - update to 1.0
python3-Flask - update to 0.12.1-7.7.1
python-Flask - update to 0.12.1-7.7.1
QRadar Assistant - update to 3.7.0

• https://www.palletsprojects.com/blog/flask-1-0-released/
• https://github.com/pallets/flask/pull/2691

• Denial of service in Flask
• Improper input validation in Python Flask module in BIG-IQ Centralized Management and F5OS
• SUSE update for python-Flask
• Multiple vulnerabilities in IBM QRadar Assistant