CVE-2021-43453

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.

CVSS v3.1

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

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

1.26% chance of exploitation in the next 30 days, 67th percentile

Published

2022-04-07

Updated

2024-08-04

Proof-of-concept exploits (1)

• jerryscript-project/jerryscript/issues/4754

References

• CVE Record
• NVD entry

Related

• CVE-2021-43451
• CVE-2021-43454
• CVE-2021-43449
• CVE-2021-43455
• CVE-2021-43448
• CVE-2021-43456