PT-2020-6413 · Unknown · Jerryscript

Owl337 · Published 2020-06-01 · Updated 2021-06-16 · CVE-2020-23312

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions JerryScript version 2.2.0

Description The issue is related to the parser parse source function in the js-parser.c component of the JerryScript JavaScript engine for Internet of Things (IoT) devices. It involves an assertion failure, specifically 'context.status flags & PARSER SCANNING SUCCESSFUL' at line 2185 in js-parser.c. This vulnerability may allow a remote attacker to cause a denial of service due to insufficient use of the assert() function.

Recommendations For JerryScript version 2.2.0, as a temporary workaround, consider disabling the parser parse source function until a patch is available. Restrict access to the js-parser.c component 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

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

BDU:2021-04633

CVE-2020-23312

Affected Products

Jerryscript

References · 8

• 🔥 https://github.com/jerryscript-project/jerryscript/issues/3824 · Exploit
• https://cve.org/CVERecord?id=CVE-2020-23312 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-23312 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-23312 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-23312 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04633 · Security Note
• https://ubuntu.com/security/CVE-2020-23312 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-23312 · Vendor Advisory