#VU55243 NULL pointer dereference in Client/Desktop applications


Published: 2021-07-22

Vulnerability identifier: #VU55243

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-2021-29241

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CODESYS Gateway V3
Client/Desktop applications / Other client software
CODESYS Edge Gateway for Linux
Client/Desktop applications / Other client software
CODESYS Control V3 Runtime System Toolkit
Client/Desktop applications / Other client software
CODESYS Development System
Client/Desktop applications / Other client software
CODESYS Edge Gateway for Windows
Client/Desktop applications / Other client software

Vendor:

Description

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

The vulnerability exists due to a NULL pointer dereference error in the CmpGateway component. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions


External links
http://customers.codesys.com/index.php
http://www.codesys.com/security/security-reports.html
http://customers.codesys.com/index.php?eID=dumpFile&t=f&f=14637&token=8dbd75ae7553ae3be25e22f741db783b31e14799&download=


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.


Latest bulletins with this vulnerability