NULL pointer dereference in AVEVA Software, LLC. products - CVE-2021-32979

Vulnerability identifier: #VU55999

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2021-32979

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: AVEVA Software, LLC.

Affected software:
AVEVA System Platform
AVEVA InTouch
AVEVA Historian
AVEVA Communication Drivers Pack
AVEVA Operations Integration Core
AVEVA Data Acquisition Servers
AVEVA Batch Management
AVEVA MES
AVEVA SuiteLink Server

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 SuiteLink server while processing commands 0x04/0x0a. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://ics-cert.us-cert.gov/advisories/icsa-21-231-01
• https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AV...