CVE-2024-20467

Oct. 3, 2024, 8:09 p.m.

CVSS Score

8.6 / 10

Products Impacted

Vendor Product Versions
cisco
  • ios_xe
  • 17.11.99sw, 17.12.1, 17.12.1a

Description

A vulnerability in the implementation of the IPv4 fragmentation reassembly code in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper management of resources during fragment reassembly. An attacker could exploit this vulnerability by sending specific sizes of fragmented packets to an affected device or through a Virtual Fragmentation Reassembly (VFR)-enabled interface on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: This vulnerability affects Cisco ASR 1000 Series Aggregation Services Routers and Cisco cBR-8 Converged Broadband Routers if they are running Cisco IOS XE Software Release 17.12.1 or 17.12.1a.

Weaknesses

CWE-399
None

None

CWE ID: 399

Date

Published: Sept. 25, 2024, 5:15 p.m.

Last Modified: Oct. 3, 2024, 8:09 p.m.

Status : Analyzed

CVE has had analysis completed and all data associations made.

More info

Source

ykramarz@cisco.com

CPEs

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o cisco ios_xe 17.11.99sw / / / / / / /
o cisco ios_xe 17.12.1 / / / / / / /
o cisco ios_xe 17.12.1a / / / / / / /

CVSS Data

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Base Score
8.6
Exploitability Score
3.9
Impact Score
4.0
Base Severity
HIGH
CVSS Vector String

The CVSS vector string provides an in-depth view of the vulnerability metrics.

View Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

References