----------------------------------------------------------------------

The Secunia CSI 5.0 Beta - now available for testing
Find out more, take a free test drive, and share your opinion with us: 
http://secunia.com/blog/242 

----------------------------------------------------------------------

TITLE:
Cisco IOS Data-Link Switching Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA45722

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45722/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45722

RELEASE DATE:
2011-08-23

DISCUSS ADVISORY:
http://secunia.com/advisories/45722/#comments

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

http://secunia.com/advisories/45722/

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=45722

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

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

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

The vulnerability is caused due to an unspecified error related to
Data-Link Switching and can be exploited to cause a crash by sending
a series of specially crafted packets within a narrow time frame.

Successful exploitation requires certain unspecified conditions to be
set.

The vulnerability is reported in version 12.2, 12.3, 12.4, 15.0, and
15.1.

SOLUTION:
Update to a fixed version.

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

ORIGINAL ADVISORY:
Cisco (CSCtf74999):
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtf74999
http://www.cisco.com/en/US/docs/cable/cmts/release/notes/12_2sc/uBR7200/122_33_SCF/caveats.html
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SY/release/notes/ol_20679.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

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:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://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.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------