#VU39951 Input validation error in Ruby - CVE-2016-2337

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Main Vulnerability Database Vulnerabilities #VU39951

#VU39951 Input validation error in Ruby - CVE-2016-2337

Published: January 6, 2017 / Updated: August 9, 2020


Vulnerability identifier: #VU39951
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2016-2337
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Ruby
Software vendor:
Ruby

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Type confusion exists in _cancel_eval Ruby's TclTkIp class method. Attacker passing different type of object than String as "retval" argument can cause arbitrary code execution. <a href="http://cwe.mitre.org/data/definitions/843.html">CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')</a>


Remediation

Install update from vendor's website.

External links