CVE-2019-1869

Current Description

A vulnerability in the internal packet-processing functionality of the Cisco StarOS operating system running on virtual platforms could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to a logic error that may occur under specific traffic conditions. An attacker could exploit this vulnerability by sending a series of crafted packets to an affected device. A successful exploit could allow the attacker to prevent the targeted service interface from receiving any traffic, which would lead to a DoS condition on the affected interface. The device may have to be manually reloaded to recover from exploitation of this vulnerability.

Basic Data

Published	June 20, 2019
Last Modified	October 09, 2019
Assigner	cve@mitre.org
Data Type	CVE
Data Format	MITRE
Data Version	4.0
Problem Type	CWE-824
CVE Data Version	4.0

Base Metric V2

CVSS 2 - Version	2.0
CVSS 2 - Vector String	AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 2 - Access Vector	NETWORK
CVSS 2 - Access Complexity	LOW
CVSS 2 - Authentication	NONE
CVSS 2 - Confidentiality Impact	NONE
CVSS 2 - Availability Impact	PARTIAL
CVSS 2 - Base Score	5.0
Severity	MEDIUM
Exploitability Score	10.0
Impact Score	2.9
Obtain All Privilege	false
Obtain User Privilege	false
Obtain Other Privilege	false

Base Metric V3

CVSS 3 - Version	3.0
CVSS 3 - Vector String	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3 - Attack Vector	NETWORK
CVSS 3 - Attack Complexity	LOW
CVSS 3 - Privileges Required	NONE
CVSS 3 - User Interaction	NONE
CVSS 3 - Scope	UNCHANGED
CVSS 3 - Confidentiality Impact	NONE
CVSS 3 - Integrity Impact	NONE
CVSS 3 - Availability Impact	HIGH
CVSS 3 - Base Score	7.5
CVSS 3 - Base Severity	HIGH
Exploitability Score	3.9
Base Severity	HIGH

Configurations

AND

OR - Configuration 1

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Excluding
2.3	OS	Cisco	Staros	*	*	*	*	*	*	*	*	21.6	21.6.13
2.3	OS	Cisco	Staros	*	*	*	*	*	*	*	*	21.6b	21.6b.16
2.3	OS	Cisco	Staros	*	*	*	*	*	*	*	*	21.7	21.7.11
2.3	OS	Cisco	Staros	*	*	*	*	*	*	*	*	21.8	21.8.10
2.3	OS	Cisco	Staros	*	*	*	*	*	*	*	*	21.9	21.9.7
2.3	OS	Cisco	Staros	*	*	*	*	*	*	*	*	21.10	21.10.2
2.3	OS	Cisco	Staros	*	*	*	*	*	*	*	*	21.11	21.11.1

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other
2.3	Hardware	Cisco	Asr 5000	-	*	*	*	*	*	*	*
2.3	Hardware	Cisco	Asr 5500	-	*	*	*	*	*	*	*
2.3	Hardware	Cisco	Asr 5700	-	*	*	*	*	*	*	*

Vulnerable Software List

Vendor	Product	Versions
Cisco	Staros	*

References

Name	Source	URL	Tags
108853	http://www.securityfocus.com/bid/108853	BID	Third Party Advisory VDB Entry
20190619 Cisco StarOS Denial of Service Vulnerability	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190619-staros-asr-d	CISCO	Vendor Advisory