CVE-2016-2337

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Summary

CVECVE-2016-2337
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-01-06 21:59:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionType 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.

Risk And Classification

Primary CVSS: v3.0 9.8 CRITICAL from [email protected]

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

EPSS: 0.008050000 probability, percentile 0.742190000 (date 2026-05-11)

Problem Types: NVD-CWE-Other | type confusion

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary9.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Ruby-lang Ruby 2.2.2 All All All
Application Ruby-lang Ruby 2.3.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ruby Ruby affected 2.3.0 dev Not specified
CNA Ruby Ruby affected 2.2.2 Not specified
CNA Tcl Tcl/Tk affected 8.6 or later Not specified

References

ReferenceSourceLinkTags
Ruby TclTkIp 'ip_cancel_eval()' Function Type Confusion Remote Code Execution Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Ruby: Multiple vulnerabilities (GLSA 201710-18) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
[SECURITY] [DLA 1480-1] ruby2.1 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
Cisco Talos - Talos 2016 0031 af854a3a-2127-422b-91ae-364da2661108 www.talosintelligence.com Exploit, Technical Description, Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 710368 Gentoo Linux Ruby Multiple Vulnerabilities (GLSA 201710-18)
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