Vulnerability Details : CVE-2021-43453
Potential exploit
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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-43453
- cpe:2.3:a:jerryscript:jerryscript:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43453
0.34%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43453
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-43453
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-43453
-
https://github.com/jerryscript-project/jerryscript/issues/4754
Heap-overflow on an ill-formed JS program · Issue #4754 · jerryscript-project/jerryscript · GitHubExploit;Issue Tracking;Third Party Advisory
Jump to