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RubySecRUBY:MRUBY-2020-6838

HistoryJan 10, 2020 - 9:00 p.m.

heap use after free in hash_values_at in mrbgems/mruby-hash-ext/src/hash-ext.c

2020-01-1021:00:00

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

JSON

In mruby 2.1.0, there is a use-after-free in hash_values_at in
mrbgems/mruby-hash-ext/src/hash-ext.c.

Affected configurations

Vulners

Node

rubymrubyRange2.1.0–2.1.1

rubymrubyRange≤2.1.1

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/4926

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

JSON

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