Espruino 2v05.41 src/jsvar.c jsvGarbageCollectMarkUsed buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Espruino 2v05.41. It has been classified as critical. This impacts the function jsvGarbageCollectMarkUsed of the file src/jsvar.c. The manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2020-23257. No exploit is available.

Detailsinfo

A vulnerability was found in Espruino 2v05.41 and classified as problematic. This issue affects the function jsvGarbageCollectMarkUsed of the file src/jsvar.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. 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. Impacted is availability. The summary by CVE is:

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.

The weakness was published 04/04/2023 as 1820. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2020-23257 since 08/13/2020. Technical details of the vulnerability are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/13/2020 🔍
04/04/2023 +964 days 🔍
04/04/2023 +0 days 🔍
04/22/2023 +18 days 🔍

Sourcesinfo

Product: github.com

Advisory: 1820
Status: Confirmed

CVE: CVE-2020-23257 (🔍)
GCVE (CVE): GCVE-0-2020-23257
GCVE (VulDB): GCVE-100-224915

Entryinfo

Created: 04/04/2023 18:24
Updated: 04/22/2023 09:40
Changes: 04/04/2023 18:24 (39), 04/22/2023 09:40 (11)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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