Cisco IOS RSVP Buffer Overflow Induces DoS Reload
CVE-2024-20433 Published on September 25, 2024

A vulnerability in the Resource Reservation Protocol (RSVP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a buffer overflow when processing crafted RSVP packets. An attacker could exploit this vulnerability by sending RSVP traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

NVD

Vulnerability Analysis

CVE-2024-20433 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

What is a Stack Overflow Vulnerability?

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CVE-2024-20433 has been classified to as a Stack Overflow vulnerability or weakness.


Products Associated with CVE-2024-20433

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2024-20433 are published in these products:

Cisco Internetwork Operating System (IOS)
 
Cisco IOS XE
 

Affected Versions

Cisco IOS: Cisco IOS XE Software: cisco ios_xe:

Exploit Probability

EPSS
0.89%
Percentile
75.23%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.