SB2021102917 - Denial of service in multiple Cisco Products
Published: October 29, 2021
Security Bulletin ID
SB2021102917
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2021-40114)
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak while the Snort detection engine is processing ICMP packets. A remote attacker can send a specially crafted ICMP packet, force the application to leak memory and perform denial of service attack.
Remediation
Install update from vendor's website.