#VU18403 Integer overflow in Python - CVE-2018-20406 

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Main Vulnerability Database Vulnerabilities #VU18403

#VU18403 Integer overflow in Python - CVE-2018-20406

Published: May 7, 2019


Vulnerability identifier: #VU18403
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-20406
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Python
Software vendor:
Python.org

Description

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

The vulnerability exists due to integer overflow in modules/_pickle.c when processing a large LONG_BINPUT value during the "resize to twice the size" attempt. A remote attacker can supply overly large data, trigger integer overflow and exhaust all resources on the system.


Remediation

Install updates from vendor's website.

External links