CVE-2016-6423 Denial of service in n/a
Remote attackers can cause a device reload in Cisco IOS via crafted IKEv2 packets, resulting in a 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-2016-6423?
CVE-2016-6423 is a medium-severity denial of service vulnerability in Cisco Ios, published on 5 Oct 2016. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The IKEv2 client and initiator implementations in Cisco IOS 15.5(3)M and IOS XE allow remote IKEv2 servers to cause a denial of service (device reload) via crafted IKEv2 packets, aka Bug ID CSCux97540.
Weakness: CWE-399
Which versions are affected by CVE-2016-6423?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2016-6423?
No fix has been published for CVE-2016-6423 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-2016-6423 being exploited?
There is no known exploitation of CVE-2016-6423 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-f765-58h8-hwq6.