SB2024091239 - Remote denial of service when handling UDP packets in Cisco IOS XR software
Published: September 12, 2024
Security Bulletin ID
SB2024091239
CSH 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 vulnerability.
1) Memory leak (CVE-ID: CVE-2024-20304)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 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
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak within the multicast traceroute version 2 (Mtrace2) feature. A remote attacker can send specially crafted UDP packets to the affected device and perform denial of service attack.
Remediation
Install update from vendor's website.