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MitreCVE-2021-43453

HistoryApr 07, 2022 - 9:15 p.m.

CVE-2021-43453

2022-04-0721:15:07

CWE-125

mitre

web.nvd.nist.gov

cve-2021-43453

heap-based buffer overflow

jerryscript

parser

vulnerability

out-of-bounds read

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

AI Score

8.8

Confidence

High

EPSS

0.002

Percentile

60.7%

JSON

A Heap-based Buffer Overflow vulnerability exists in JerryScript 2.4.0 and prior versions via an out-of-bounds read in parser_parse_for_statement_start in the js-parser-statm.c file. This issue is similar to CVE-2020-29657.

Affected configurations

Nvd

Node

jerryscriptjerryscriptRange≤2.4.0

VendorProductVersionCPE
jerryscriptjerryscript*cpe:2.3:a:jerryscript:jerryscript:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
jerryscript	jerryscript	*	cpe:2.3:a:jerryscript:jerryscript::::::::

References

github.com/jerryscript-project/jerryscript/issues/4754

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

AI Score

8.8

Confidence

High

EPSS

0.002

Percentile

60.7%

JSON

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