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CVE-2024-20317

Oct. 3, 2024, 5:58 p.m.

CVSS Score

7.4 / 10

Products Impacted

Vendor Product Versions
cisco
  • ios_xr
  • 7.7.1, 7.7.2, 7.7.21, 7.8.1, 7.8.2, 7.8.22, 7.9.1, 7.9.2, 7.9.21, 7.10.1

Description

A vulnerability in the handling of specific Ethernet frames by Cisco IOS XR Software for various Cisco Network Convergence System (NCS) platforms could allow an unauthenticated, adjacent attacker to cause critical priority packets to be dropped, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect classification of certain types of Ethernet frames that are received on an interface. An attacker could exploit this vulnerability by sending specific types of Ethernet frames to or through the affected device. A successful exploit could allow the attacker to cause control plane protocol relationships to fail, resulting in a DoS condition. For more information, see the section of this advisory. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Weaknesses

CWE-684
Incorrect Provision of Specified Functionality

The code does not function according to its published specifications, potentially leading to incorrect usage.

CWE ID: 684

Date

Published: Sept. 11, 2024, 5:15 p.m.

Last Modified: Oct. 3, 2024, 5:58 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

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_xr 7.7.1 / / / / / / /
o cisco ios_xr 7.7.2 / / / / / / /
o cisco ios_xr 7.7.21 / / / / / / /
o cisco ios_xr 7.8.1 / / / / / / /
o cisco ios_xr 7.8.2 / / / / / / /
o cisco ios_xr 7.8.22 / / / / / / /
o cisco ios_xr 7.9.1 / / / / / / /
o cisco ios_xr 7.9.2 / / / / / / /
o cisco ios_xr 7.9.21 / / / / / / /
o cisco ios_xr 7.10.1 / / / / / / /

CVSS Data

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Base Score
7.4
Exploitability Score
2.8
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:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

References