Vulnerability identifier: #VU49925

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-29657

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
JerryScript
Web applications / JS libraries

Vendor: JerryScript

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the main_print_unhandled_exception() function in the main-utils.c file. A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

JerryScript: 2.3.0

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External links
http://github.com/jerryscript-project/jerryscript/issues/4244

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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.