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TITLE:
Cisco Nexus 1000V Virtual Switch 802.1Q Tagged Packet Denial of
Service

SECUNIA ADVISORY ID:
SA43084

VERIFY ADVISORY:
Secunia.com
https://secunia.com/advisories/43084/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43084

RELEASE DATE:
2011-02-09

DISCUSS ADVISORY:
https://secunia.com/advisories/43084/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

https://secunia.com/advisories/43084/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43084

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

https://secunia.com/vulnerability_scanning/personal/
https://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in Cisco Nexus 1000V, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error when processing 802.1Q
tagged packets. This can be exploited to cause a crash when a virtual
machine sends a packet on a vEthernet port.

The vulnerability is reported in the following products:
* Cisco Nexus 1000V Virtual Ethernet Module Release 4.0(4) SV1(3b)
* Cisco Nexus 1000V Virtual Ethernet Module Release 4.0(4) SV1(3a)
* Cisco Nexus 1000V Virtual Ethernet Module Release 4.0(4) SV1(3)
* Cisco Nexus 1000V Virtual Ethernet Module Release 4.0(4) SV1(2)
* Cisco Nexus 1000V Virtual Ethernet Module Release 4.0(4) SV1(1)

SOLUTION:
Update to version 4.0(4) SV1(3c).

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
Cisco (CSCtj17451):
https://www.cisco.com/en/US/docs/switches/datacenter/nexus1000/sw/4_0_4_s_v_1_3_c/release/notes/n1000v_rn.html

OTHER REFERENCES:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
https://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
https://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
https://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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