CVE-2022-20685: cisco cisco cyber vision Integer Overflow or Wraparound

Vulnerability summary

CVE-2022-20685 is a high (CVSS 7.5) Integer Overflow or Wraparound vulnerability in cisco cisco cyber vision. EPSS estimates a 1.46% chance of exploitation in the next 30 days, higher than 73.1% of scored vulnerabilities.

Timeline

1. 15-11-2024
   PublishedVulnerability first disclosed.
2. 27-01-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.