CVE-2016-6381 Denial of service in n/a
Remote attackers can cause denial of service via fragmented IKEv1 packets, requiring Cisco IOS and IOS XE administrators to apply vendor patches.
- 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-2016-6381?
CVE-2016-6381 is a high-severity denial of service vulnerability in Cisco Ios, published on 5 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cisco IOS 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.18 and 16.1 allow remote attackers to cause a denial of service (memory consumption or device reload) via fragmented IKEv1 packets, aka Bug ID CSCuy47382.
Weakness: CWE-399
Which versions are affected by CVE-2016-6381?
It affects 6 products.
Products include Cisco Ios, Cisco Ios Xe, Cisco Ios Xe 16.1, Cisco Ios Xe 3.3sg, Cisco Ios Xe 3.3xo, Cisco Ios Xe 3.4sg.
How do I fix CVE-2016-6381?
No fix has been published for CVE-2016-6381 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-2016-6381 being exploited?
There is no known exploitation of CVE-2016-6381 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-7v3x-w835-5wrm.