Multiple Cisco Catalyst devices Supervisor Engine and Route Switch Processor modules denial of service
| cisco-catalyst-sup-rsp-dos (41466) |  Medium Risk |
Description:
Multiple Cisco Catalyst devices using Supervisor Engine 32, Supervisor Engine 720, or Route Switch Processor 720 modules are vulnerable to a denial of service, caused by an error when OSPF sham-link and MPLS VPN are enabled on certain versions of IOS 12.2. By sending certain packets to an affected device, a remote attacker could block the input queue, create memory leaks, or cause the device to reload.
*CVSS:
| Base Score: | 5.4 |
| Access Vector: | Network |
| Access Complexity: | High |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 4 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Refer to cisco-sa-20080326-queue for patch, upgrade or suggested workaround information. See References.
References:
- cisco-sa-20080326-queue: Cisco Security Advisory: Vulnerability in Cisco IOS with OSPF, MPLS VPN, and Supervisor 32, Supervisor 720, or Route Switch Processor 720.
- BID-28463: Cisco IOS With OSPF, MPLS VPN, Sup32, Sup720 or RSP720 Denial of Service Vulnerability
- CVE-2008-0537: Unspecified vulnerability in the Supervisor Engine 32 (Sup32), Supervisor Engine 720 (Sup720), and Route Switch Processor 720 (RSP720) for multiple Cisco products, when using Multi Protocol Label Switching (MPLS) VPN and OSPF sham-link, allows remote attackers to cause a denial of service (blocked queue, device restart, or memory leak) via unknown vectors.
- SA29559: Cisco IOS Denial of Service Vulnerability
- SECTRACK ID: 1019716: Cisco IOS OSPF/MPLS VPN Bug Lets Remote Users Deny Service
- VUPEN/ADV-2008-1005: Cisco IOS Packets Processing Remote Denial of Service Vulnerability
Platforms Affected:
- Cisco Catalyst 6500
- Cisco Catalyst 7600
- Cisco IOS 12.2SXA
- Cisco IOS 12.2SXB
- Cisco IOS 12.2SXD
- Cisco IOS 12.2SXE
- Cisco IOS 12.2ZU
- Cisco ME 6524 Ethernet Switch
Reported:
Mar 26, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.