CVE-2011-4231 Denial of service in n/a
Remote authenticated users can crash Cisco IOS devices configured as IPsec hubs with X.509 certificates, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2011-4231?
CVE-2011-4231 is a medium-severity denial of service vulnerability in Cisco Ios, published on 3 May 2012. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Cisco IOS 15.1 and 15.2 and IOS XE 3.x, when configured as an IPsec hub with X.509 certificates in use, allows remote authenticated users to cause a denial of service (segmentation fault and device crash) via unspecified vectors, aka Bug ID CSCtq61128.
Weakness: CWE-20
Which versions are affected by CVE-2011-4231?
It affects 2 products.
Products include Cisco Ios, Cisco Ios Xe.
How do I fix CVE-2011-4231?
No fix has been published for CVE-2011-4231 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-2011-4231 being exploited?
There is no known exploitation of CVE-2011-4231 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-33f8-vpx6-6229.