CVE-2011-4016 Denial of service in n/a
Remote attackers can crash Cisco IOS devices via crafted network traffic when PTA and L2TP 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-2011-4016?
CVE-2011-4016 is a medium-severity denial of service vulnerability in Cisco Ios, published on 2 May 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.
Which versions are affected by CVE-2011-4016?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2011-4016?
No fix has been published for CVE-2011-4016 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-2011-4016 being exploited?
There is no known exploitation of CVE-2011-4016 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
- CVE-2017-12240 Cisco IOS and IOS XE Software DHCP Remote Code Execution
- CVE-2017-3881 Cisco IOS and IOS XE Remote Code Execution
- CVE-2018-0167 Cisco IOS, XR, and XE Software Buffer Overflow
- CVE-2017-6736 Cisco IOS and IOS XE Software SNMP Remote Code Execution
- CVE-2017-6737 Cisco IOS and IOS XE Software SNMP Remote Code Execution
Sources
Also known as GHSA-rf3j-84v2-5387.