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ubuntucveUbuntu.comUB:CVE-2016-2339
HistoryJan 06, 2017 - 12:00 a.m.

CVE-2016-2339

2017-01-0600:00:00
ubuntu.com
ubuntu.com
17

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

EPSS

0.011

Percentile

84.1%

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.

Bugs

Notes

Author Note
mdeslaur 2.3.0 and later not affected
OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchruby1.9.1< 1.9.3.484-2ubuntu1.3UNKNOWN
ubuntu14.04noarchruby2.0< 2.0.0.484-1ubuntu2.4UNKNOWN

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

EPSS

0.011

Percentile

84.1%