Vulnerability Details : CVE-2021-33440
An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is NULL pointer dereference in mjs_bcode_commit() in mjs.c.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-33440
- cpe:2.3:a:cesanta:mjs:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33440
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 62 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33440
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-33440
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-33440
-
https://github.com/cesanta/mjs/issues/163
A NULL pointer dereference in the function mjs_bcode_commit() mjs.c:8051 · Issue #163 · cesanta/mjs · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
-
https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d
Minimum information for the vulnerability covered by 32 CVEs. · GitHubThird Party Advisory
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