CVE-2011-0395 Denial of service in n/a

High 7.8 Published 25 Feb 2011 Updated 6 Aug 2024

Remote attackers can cause a denial of service on Cisco ASA devices by sending malicious RIP updates when specific features are enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2011-0395?

CVE-2011-0395 is a high-severity denial of service vulnerability in Cisco Adaptive Security Appliance, published on 25 Feb 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.20), 8.1 before 8.1(2.48), 8.2 before 8.2(3), and 8.3 before 8.3(2.1), when the RIP protocol and the Cisco Phone Proxy functionality are configured, allow remote attackers to cause a denial of service (device reload) via a RIP update, aka Bug ID CSCtg66583.

Weakness: CWE-399

Which versions are affected by CVE-2011-0395?

It affects 17 products.

Products include Cisco Adaptive Security Appliance, Cisco Adaptive Security Appliance Software, Cisco Asa 5500, Cisco Asa 5505, Cisco Asa 5510, Cisco Asa 5520 and 11 more.

How do I fix CVE-2011-0395?

No fix has been published for CVE-2011-0395 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-2011-0395 being exploited?

There is no known exploitation of CVE-2011-0395 in the wild and no public exploit code.

All Cisco Adaptive Security Appliance vulnerabilities

Sources

Also known as GHSA-gqgp-8xv7-mjfw.