Description

A vulnerability in the egress packet processing functionality of the Cisco StarOS operating system for Cisco Aggregation Services Router (ASR) 5700 Series devices and Virtualized Packet Core (VPC) System Software could allow an unauthenticated, remote attacker to cause an interface on the device to cease forwarding packets. The device may need to be manually reloaded to clear this Interface Forwarding Denial of Service condition. The vulnerability is due to the failure to properly check that the length of a packet to transmit does not exceed the maximum supported length of the network interface card (NIC). An attacker could exploit this vulnerability by sending a crafted IP packet or a series of crafted IP fragments through an interface on the targeted device. A successful exploit could allow the attacker to cause the network interface to cease forwarding packets. This vulnerability could be triggered by either IPv4 or IPv6 network traffic. This vulnerability affects the following Cisco products when they are running the StarOS operating system and a virtual interface card is installed on the device: Aggregation Services Router (ASR) 5700 Series, Virtualized Packet Core-Distributed Instance (VPC-DI) System Software, Virtualized Packet Core-Single Instance (VPC-SI) System Software. Cisco Bug IDs: CSCvf32385.

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score:  7.5 HIGH

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

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score:  5.0 MEDIUM

Vector:  (AV:N/AC:L/Au:N/C:N/I:N/A:P)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.securityfocus.com/bid/103923	Third Party Advisory  VDB Entry
http://www.securityfocus.com/bid/103923	Third Party Advisory  VDB Entry
http://www.securitytracker.com/id/1040720	Third Party Advisory  VDB Entry
http://www.securitytracker.com/id/1040720	Third Party Advisory  VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-staros	Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-staros	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-770	Allocation of Resources Without Limits or Throttling	NIST
CWE-20	Improper Input Validation	Cisco Systems, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

CVE Modified by CVE 11/20/2024 10:37:47 PM

Action	Type	Old Value	New Value
Added	Reference		http://www.securityfocus.com/bid/103923
Added	Reference		http://www.securitytracker.com/id/1040720
Added	Reference		https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-staros

CVE Modified by Cisco Systems, Inc. 5/14/2024 12:50:37 AM

Action	Type	Old Value	New Value

Modified Analysis by NIST 9/04/2020 2:28:13 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Removed	CVSS V3	NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added	CWE		NIST CWE-770
Removed	CWE	NIST CWE-20

CVE Modified by Cisco Systems, Inc. 10/09/2019 7:31:33 PM

Action	Type	Old Value	New Value
Added	CWE		Cisco Systems, Inc. CWE-20

Initial Analysis by NIST 5/23/2018 9:05:41 AM

Action	Type	Old Value	New Value
Added	CVSS V3		AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added	CVSS V2		(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Added	CWE		CWE-20
Added	CPE Configuration		AND OR *cpe:2.3:o:cisco:staros:21.0.v0.65819:*:*:*:*:*:*:* *cpe:2.3:o:cisco:staros:21.0.v4:*:*:*:*:*:*:* *cpe:2.3:o:cisco:staros:21.1.v6:*:*:*:*:*:*:* *cpe:2.3:o:cisco:staros:21.3.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:staros:21.4.0:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:*
Changed	Reference Type	http://www.securityfocus.com/bid/103923 No Types Assigned	http://www.securityfocus.com/bid/103923 Third Party Advisory, VDB Entry
Changed	Reference Type	http://www.securitytracker.com/id/1040720 No Types Assigned	http://www.securitytracker.com/id/1040720 Third Party Advisory, VDB Entry
Changed	Reference Type	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-staros No Types Assigned	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-staros Vendor Advisory

CVE Modified by Cisco Systems, Inc. 4/20/2018 9:29:01 PM

Action	Type	Old Value	New Value
Added	Reference		http://www.securityfocus.com/bid/103923 [No Types Assigned]
Added	Reference		http://www.securitytracker.com/id/1040720 [No Types Assigned]