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RubySecRUBY:MRUBY-2018-10199

HistoryApr 17, 2018 - 9:00 p.m.

Use after free in File#initilialize_copy

2018-04-1721:00:00

RubySec

github.com

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

0.004

Percentile

74.5%

JSON

In versions of mruby up to and including 1.4.0, a use-after-free
vulnerability exists in src/io.c::File#initilialize_copy(). An
attacker that can cause Ruby code to be run can possibly use
this to execute arbitrary code.

Affected configurations

Vulners

Node

rubymrubyRange≤1.4.1

VendorProductVersionCPE
rubymruby*cpe:2.3:a:ruby:mruby:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
ruby	mruby	*	cpe:2.3:a:ruby:mruby::::::::

References

github.com/mruby/mruby/issues/4001

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

0.004

Percentile

74.5%

JSON

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