CVE-2016-2337

critical

Published 2017-01-06 · Modified 2026-05-06

CVSS v3

9.8

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

CVSS v2

7.5

VIR risk

9.8

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.

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-2337.html

OS impact

OS	Version	Status	Fixed in
sles		affected

Application impact

Vendor	Product	Versions	Fixed
ruby-lang	ruby	`2.2.2`
ruby-lang	ruby	`2.3.0`

References

https://www.suse.com/security/cve/CVE-2016-2337.html
http://www.securityfocus.com/bid/91233
http://www.talosintelligence.com/reports/TALOS-2016-0031/
https://lists.debian.org/debian-lts-announce/2018/08/msg00028.html
https://security.gentoo.org/glsa/201710-18

Verify integrity in audit chain (admin only). AS-IS.