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

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

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.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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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: 🔍
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Exploitinginfo

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

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

Interest: 🔍
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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

Advisory: 1820
Status: Confirmed

CVE: CVE-2020-23257 (🔍)

Entryinfo

Created: 04/04/2023 06:24 PM
Updated: 04/22/2023 09:40 AM
Changes: 04/04/2023 06:24 PM (39), 04/22/2023 09:40 AM (11)
Complete: 🔍
Cache ID: 18:472:40

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