Denial of service in Espruino



Published: 2018-12-18
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-20201
CWE-ID CWE-121
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Espruino
Universal components / Libraries / Scripting languages

Vendor Pur3 Ltd.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Stack-based buffer overflow

EUVDB-ID: #VU16601

Risk: Low

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-20201

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to stack-based buffer overflow in the jsfNameFromString function of jsflash.c. A remote attacker can supply a specially crafted js file, trigger memory corruption and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Espruino: 2.00

External links

http://github.com/espruino/Espruino/issues/1587


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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