CVE-2021-26194 — MEDIUM (6.5)

Vulnerability Description

An issue was discovered in JerryScript 2.4.0. There is a heap-use-after-free in ecma_is_lexical_environment in the ecma-helpers.c file.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Jerryscript	Jerryscript	2.4.0

Related Weaknesses (CWE)

CWE-416

References

https://github.com/jerryscript-project/jerryscript/issues/4445ExploitIssue TrackingPatch
https://github.com/jerryscript-project/jerryscript/issues/4445ExploitIssue TrackingPatch

FAQ

What is CVE-2021-26194?

CVE-2021-26194 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An issue was discovered in JerryScript 2.4.0. There is a heap-use-after-free in ecma_is_lexical_environment in the ecma-helpers.c file.

How severe is CVE-2021-26194?

CVE-2021-26194 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26194?

Check the references section above for vendor advisories and patch information. Affected products include: Jerryscript Jerryscript.