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TI-2016-02101 Aliases CVE-2016-2337GHSA-f58m-77qc-8gjv

Type confusion exists in _cancel_eval Ruby's TclTkIp class method.

Priority MEDIUM 51Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.06153 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
rubyRuby2.3.0 dev; 2.2.2—No fix listedCNA
TCLTcl/Tk8.6 or later—No fix listedCNA
  • Ruby Vendorruby Affected 2.3.0 dev; 2.2.2 Fixed in — No fix listed CNA
  • Tcl/Tk VendorTCL Affected 8.6 or later Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:ruby:2.2.2:*:*:*:*:*:*:*2.2.2Vulnerableruby
cpe:2.3:a:ruby-lang:ruby:2.3.0:*:*:*:*:*:*:*2.3.0Vulnerableruby
  • cpe:2.3:a:ruby-lang:ruby:2.2.2:*:*:*:*:*:*:* Versions 2.2.2 Vulnerable ·ruby
  • cpe:2.3:a:ruby-lang:ruby:2.3.0:*:*:*:*:*:*:* Versions 2.3.0 Vulnerable ·ruby

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
CloudForms Management Engine 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-2337
  2. 2026-10-03 Alias added: GHSA-f58m-77qc-8gjv

References

Exploit 1

Advisory 1

Other 1

  • TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
  • TI-2017-12709 Ruby before 2.4.3 allows Net::FTP command injection. CVSS 3.0HIGH 8.8
  • TI-2008-03501 Algorithmic complexity vulnerability in the WEBrick::HTTPUtils.split_header_value… CVSS 2.0HIGH 7.8
  • TI-2021-09891 In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web… CVSS 3.1HIGH 7.5
  • TI-2013-03637 Heap-based buffer overflow in Ruby 1.8, 1.9 before 1.9.3-p484, 2.0 before 2.0.0-p353, 2.1… CVSS 2.0MEDIUM 6.8
  • TI-2018-11751 An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5… CVSS 3.0CRITICAL 9.8
See all 92 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences