CVE-2016-2339

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.talosintelligence.com/reports/TALOS-2016-0034/	Exploit Technical Description Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/91234
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:ruby-lang:ruby:2.3.0:::::::*
	cpe:2.3:a:ruby-lang:ruby:2.2.2:::::::*

Information

Published : 2017-01-06 13:59

Updated : 2018-07-14 18:29

NVD link : CVE-2016-2339

Mitre link : CVE-2016-2339

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

ruby-lang

ruby

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