Vulnerability identifier: #VU28484

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13622

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
JerryScript
Web applications / JS libraries

Vendor: JerryScript

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when property key query for a Proxy object returns unintended data. A remote attacker can cause a denial of service condition on the target system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

JerryScript: 2.2.0

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External links
http://github.com/jerryscript-project/jerryscript/issues/3787
http://github.com/jerryscript-project/jerryscript/pull/3797
http://exchange.xforce.ibmcloud.com/vulnerabilities/182617

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.