CVE-2012-3918 Denial of service in n/a
Remote attackers can cause a serial-interface outage on Cisco 2900 devices via Frame Relay traffic when specific TDM/HDLC configurations are active.
- 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-2012-3918?
CVE-2012-3918 is a medium-severity denial of service vulnerability in Cisco Ios, published on 23 Apr 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cisco IOS before 15.3(1)T on Cisco 2900 devices, when a VWIC2-2MFT-T1/E1 card is configured for TDM/HDLC mode, allows remote attackers to cause a denial of service (serial-interface outage) via certain Frame Relay traffic, aka Bug ID CSCub13317.
Which versions are affected by CVE-2012-3918?
It affects 4 products.
Products include Cisco Catalyst 2900, Cisco Catalyst 2900 Vlan, Cisco Catalyst 2900xl, Cisco Ios.
How do I fix CVE-2012-3918?
No fix has been published for CVE-2012-3918 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-2012-3918 being exploited?
There is no known exploitation of CVE-2012-3918 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
Sources
Also known as GHSA-2534-vvmm-cq7j.