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MitreCVE-2018-12247

HistoryJun 12, 2018 - 2:29 p.m.

CVE-2018-12247

2018-06-1214:29:00

CWE-476

mitre

web.nvd.nist.gov

mruby

issue

null pointer

dereference

nvd

cve-2018-12247

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.5

Confidence

High

EPSS

0.001

Percentile

40.9%

JSON

An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class, related to certain .clone usage, because mrb_obj_clone in kernel.c copies flags other than the MRB_FLAG_IS_FROZEN flag (e.g., the embedded flag).

Affected configurations

Nvd

Node

mrubymrubyMatch1.4.1

VendorProductVersionCPE
mrubymruby1.4.1cpe:2.3:a:mruby:mruby:1.4.1:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mruby	mruby	1.4.1	cpe:2.3:a:mruby:mruby:1.4.1:::::::*

References

github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2

github.com/mruby/mruby/issues/4036

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.5

Confidence

High

EPSS

0.001

Percentile

40.9%

JSON

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