CVE-2016-2337

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
Ruby	Ruby	2.3.0 dev; 2.2.2
Tcl	Tcl/Tk	8.6 or later

References

http://www.securityfocus.com/bid/91233
http://www.talosintelligence.com/reports/TALOS-2016-0031/Exploit, Technical Description, Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/08/msg00028.html
https://security.gentoo.org/glsa/201710-18
http://www.securityfocus.com/bid/91233
http://www.talosintelligence.com/reports/TALOS-2016-0031/Exploit, Technical Description, Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/08/msg00028.html
https://security.gentoo.org/glsa/201710-18

Timeline

Published: Jan 6, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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