Stack-based buffer overflow in Cisco IOS Software and Cisco IOS XE - CVE-2024-20433
Published: September 26, 2024
Vulnerability identifier: #VU97729
CSH Severity: High
CVSS v4: 8.7 [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]
CVE-ID: CVE-2024-20433
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the Resource Reservation Protocol (RSVP) feature. A remote unauthenticated attacker can trigger stack-based buffer overflow and cause a denial of service condition on the target system.
Affected software
Cisco IOS Software
Cisco IOS XE
Cisco IOS XE
How to mitigate CVE-2024-20433
Install updates from vendor's website.
Cisco IOS Software - addressed in versions Dublin-17.12.4, 16.12.12, 17.6.8, 17.9.6, 17.12.1z, 17.12.1z1, 17.12.4, 17.15.1, 17.15.1a, 17.15.1b
Cisco IOS XE - addressed in versions Dublin-17.12.4, 16.12.12, 17.6.8, 17.9.6, 17.12.1z, 17.12.1z1, 17.12.4, 17.15.1, 17.15.1a, 17.15.1b
Cisco IOS XE - addressed in versions Dublin-17.12.4, 16.12.12, 17.6.8, 17.9.6, 17.12.1z, 17.12.1z1, 17.12.4, 17.15.1, 17.15.1a, 17.15.1b