Out-of-bounds read in CodeMeter Runtime - CVE-2021-20094

 

Out-of-bounds read in CodeMeter Runtime - CVE-2021-20094

Published: July 30, 2021


Vulnerability identifier: #VU55441
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-2021-20094
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Wibu Systems
Affected software:
CodeMeter Runtime

Detailed vulnerability description

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

The vulnerability exists due to a boundary condition. A remote attacker can send a specially crafted packet to the CodeMeter Runtime CmWAN server, trigger out-of-bounds read error and cause a denial of service condition on the system.


How to mitigate CVE-2021-20094

Install updates from vendor's website.

Sources