PT-2021-4094 · Unknown · Jerryscript

Chong · Published 2021-01-02 · Updated 2021-06-16 · CVE-2021-26197

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions JerryScript version 2.4.0

Description The issue is related to insufficient checking of unusual or exceptional states in the main print unhandled exception function of the main-utils.c file. This can be exploited by a remote attacker to cause a denial of service. The main print unhandled exception function is part of the JerryScript engine for the Internet of Things.

Recommendations For JerryScript version 2.4.0, consider disabling the main print unhandled exception function in the main-utils.c file as a temporary workaround until a patch is available. Restrict access to the main-utils.c file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

BDU:2021-04673

CVE-2021-26197

Affected Products

Jerryscript

References · 9

• 🔥 https://github.com/jerryscript-project/jerryscript/issues/4403 · Exploit
• https://bdu.fstec.ru/vul/2021-04673 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-26197 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26197 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-26197 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-26197 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-26197 · Security Note
• https://ubuntu.com/security/CVE-2021-26197 · Vendor Advisory
• https://t.me/cvenotify/16124 · Telegram Post