SB2024091245 - Denial of service in Cisco IOS XR network convergence system
Published: September 12, 2024
Security Bulletin ID
SB2024091245
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect provision of specified functionality (CVE-ID: CVE-2024-20317)
CWE-ID: CWE-684 - Incorrect Provision of Specified Functionality
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
A remote attacker can perform a denial of service (DoS) attack.
The vulnerability exists due to improper validation of specific Ethernet frames by Cisco IOS XR Software for various Cisco Network Convergence System (NCS) platforms. A remote attacker can send specially crafted packets through the device and perform a denial of service attack.
Remediation
Install update from vendor's website.