CVE-2015-4199 Race condition in n/a

High 7.1 Published Updated

Remote attackers can cause a denial of service on Cisco IOS UBR devices by triggering a race condition in IPv6-to-IPv4 functionality.

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-2015-4199?

CVE-2015-4199 is a high-severity vulnerability in Cisco Ios, published on 27 Jun 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Race condition in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (NULL pointer free and module crash) by triggering intermittent connectivity with many IPv6 CPE devices, aka Bug ID CSCug47366.

Weakness: CWE-362

Which versions are affected by CVE-2015-4199?

It affects 1 product.

Products include Cisco Ios.

How do I fix CVE-2015-4199?

No fix has been published for CVE-2015-4199 yet. Limit exposure of the affected software until one is available.

Is CVE-2015-4199 being exploited?

There is no known exploitation of CVE-2015-4199 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-3422-45qx-4m3x.

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