CVE-2012-3950 Denial of service in n/a
Remote attackers can cause a device reload via DNS packets in Cisco IOS IPS when specific categories are enabled and signatures are missing.
- 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-2012-3950?
CVE-2012-3950 is a high-severity denial of service vulnerability in Cisco Ios, published on 27 Sep 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Intrusion Prevention System (IPS) feature in Cisco IOS 12.3 through 12.4 and 15.0 through 15.2, in certain configurations of enabled categories and missing signatures, allows remote attackers to cause a denial of service (device reload) via DNS packets, aka Bug ID CSCtw55976.
Weakness: CWE-399
Which versions are affected by CVE-2012-3950?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2012-3950?
No fix has been published for CVE-2012-3950 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-2012-3950 being exploited?
There is no known exploitation of CVE-2012-3950 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-3xcj-9jh4-h55x.