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CertccCVE-2016-2339

HistoryJan 06, 2017 - 9:59 p.m.

CVE-2016-2339

2017-01-0621:59:00

CWE-119

certcc

web.nvd.nist.gov

103

cve-2016-2339

ruby

heap overflow

vulnerability

nvd

fiddle::function

arg_types

buffer overflow

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.5

Confidence

High

EPSS

0.011

Percentile

84.1%

JSON

An exploitable heap overflow vulnerability exists in the Fiddle::Function.new “initialize” function functionality of Ruby. In Fiddle::Function.new “initialize” heap buffer “arg_types” allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow.

Affected configurations

Nvd

Node

ruby-langrubyMatch2.2.2

ruby-langrubyMatch2.3.0

VendorProductVersionCPE
ruby-langruby2.2.2cpe:2.3:a:ruby-lang:ruby:2.2.2:*:*:*:*:*:*:*
ruby-langruby2.3.0cpe:2.3:a:ruby-lang:ruby:2.3.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
ruby-lang	ruby	2.2.2	cpe:2.3:a:ruby-lang:ruby:2.2.2:::::::*
ruby-lang	ruby	2.3.0	cpe:2.3:a:ruby-lang:ruby:2.3.0:::::::*

CNA Affected

[
  {
    "product": "Ruby",
    "vendor": "Ruby",
    "versions": [
      {
        "status": "affected",
        "version": "2.3.0 dev"
      },
      {
        "status": "affected",
        "version": "2.2.2"
      }
    ]
  }
]