CVE-2008-4963 Denial of service in n/a
Remote attackers can cause a denial of service on Cisco switches by sending crafted VTP packets to trunk ports when VTP is not in transparent mode.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2008-4963?
CVE-2008-4963 is a high-severity denial of service vulnerability in Cisco Ios, published on 6 Nov 2008. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Unspecified vulnerability in the VLAN Trunking Protocol (VTP) implementation on Cisco IOS and CatOS, when the VTP operating mode is not transparent, allows remote attackers to cause a denial of service (device reload or hang) via a crafted VTP packet sent to a switch interface configured as a trunk port.
Which versions are affected by CVE-2008-4963?
It affects 2 products.
Products include Cisco Catos, Cisco Ios.
How do I fix CVE-2008-4963?
No fix has been published for CVE-2008-4963 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2008-4963 being exploited?
There is no known exploitation of CVE-2008-4963 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
Sources
Also known as GHSA-7hp5-2w63-5xvj.