PT-2020-6418 · Unknown · Jerryscript

Owl337 · Published 2020-06-06 · Updated 2021-06-16 · CVE-2020-23321

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions JerryScript version 2.2.0

Description The issue is related to a heap-buffer-overflow in the lit read code unit from utf8 function of the lit-strings.c component in JerryScript. This can allow a remote attacker to access confidential data, compromise data integrity, and cause a denial of service. The vulnerability is associated with writing beyond the buffer boundaries.

Recommendations For JerryScript version 2.2.0, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2021-04638

CVE-2020-23321

Affected Products

Jerryscript

References · 9

• 🔥 https://github.com/jerryscript-project/jerryscript/issues/3870 · Exploit
• https://ubuntu.com/security/CVE-2020-23321 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-23321 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-23321 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-23321 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-23321 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-23321 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04638 · Security Note
• https://t.me/cvenotify/16129 · Telegram Post