Vulnerability Details : CVE-2020-23257
Potential exploit
Buffer Overflow vulnerability found in Espruino 2v05.41 allows an attacker to cause a denial of service via the function jsvGarbageCollectMarkUsed in file src/jsvar.c.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2020-23257
- cpe:2.3:o:espruino:espruino:2.05.41:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-23257
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-23257
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2025-02-13 |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-23257
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2020-23257
-
http://www.espruino.com/
Espruino - JavaScript for MicrocontrollersVendor Advisory
-
https://github.com/espruino/Espruino/issues/1820
IIlegal memory access may lead to arbitrary memory write inside jsvGarbageCollectMarkUsed · Issue #1820 · espruino/Espruino · GitHubExploit;Issue Tracking
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