CVE-2012-4638 Denial of service in n/a
Local users can cause a device reload and denial of service by establishing an outbound SSH session on Cisco IOS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2012-4638?
CVE-2012-4638 is a medium-severity denial of service vulnerability in Cisco Ios, published on 23 Apr 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Cisco IOS before 15.1(1)SY allows local users to cause a denial of service (device reload) by establishing an outbound SSH session, aka Bug ID CSCto00318.
Which versions are affected by CVE-2012-4638?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2012-4638?
No fix has been published for CVE-2012-4638 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-2012-4638 being exploited?
There is no known exploitation of CVE-2012-4638 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-2h33-8gg4-v626.