Buffer overflow in Espruino - CVE-2018-11596

 

Buffer overflow in Espruino - CVE-2018-11596

Published: September 9, 2018


Vulnerability identifier: #VU14726
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-11596
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Pur3 Ltd.
Affected software:
Espruino

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to boundary error during syntax parsing because a check for '\0' is made for the wrong array element in jsvar.c. A remote attacker can cause a denial of service (application crash) with a user specially crafted input file.


How to mitigate CVE-2018-11596

Install update from vendor's website.

Sources