Buffer overflow in Espruino - CVE-2018-11595
Published: September 9, 2018
Vulnerability identifier: #VU14727
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-11595
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Pur3 Ltd.
Affected software:
Espruino
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 strncat is misused. A remote attacker can cause a denial of service (application crash) and a potential Escalation of Privileges with a user specially crafted input file.
How to mitigate CVE-2018-11595
Install update from vendor's website.
Sources
- https://github.com/espruino/Espruino/commit/0a7619875bf79877907205f6bee08465b89ff10b
- https://github.com/espruino/Espruino/files/2019210/test_0.txt
- https://github.com/espruino/Espruino/files/2019216/test_2.txt
- https://github.com/espruino/Espruino/files/2019220/test_4.txt
- https://github.com/espruino/Espruino/issues/1425