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MitreCVE-2018-12248

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

CVE-2018-12248

2018-06-1214:29:00

CWE-125

mitre

web.nvd.nist.gov

mruby

1.4.1

heap-based buffer over-read

op_enter

nvd

cve-2018-12248

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

7.6

Confidence

High

EPSS

0.001

Percentile

41.6%

JSON

An issue was discovered in mruby 1.4.1. There is a heap-based buffer over-read associated with OP_ENTER because mrbgems/mruby-fiber/src/fiber.c does not extend the stack in cases of many arguments to fiber.

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/778500563a9f7ceba996937dc886bd8cde29b42b

github.com/mruby/mruby/issues/4038

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

7.6

Confidence

High

EPSS

0.001

Percentile

41.6%

JSON

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