Input validation error in Flask - CVE-2018-1000656
Published: April 8, 2019
Vulnerability identifier: #VU18150
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2018-1000656
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: The Pallets Projects
Affected software:
Flask
Flask
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing JSON data in incorrect encoding. A remote attacker can supply a specially crafted JSON string and consume all available memory resources.
Successful exploitation of the vulnerability may allow an attacker to perform denial of service (DoS) attack.
How to mitigate CVE-2018-1000656
Update to version 0.12.3.