CVE-2015-0643 Denial of service in n/a

High 7.8 Published Updated

Remote attackers can cause a denial of service and device reload by sending malformed IKEv2 packets to Cisco IOS devices.

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-2015-0643?

CVE-2015-0643 is a high-severity denial of service vulnerability in Cisco Ios, published on 26 Mar 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cisco IOS 12.2, 12.4, 15.0, 15.1, 15.2, 15.3, and 15.4 and IOS XE 2.5.x, 2.6.x, 3.1.xS through 3.12.xS before 3.12.3S, 3.2.xE through 3.7.xE before 3.7.1E, 3.3.xSG, 3.4.xSG, and 3.13.xS before 3.13.2S allow remote attackers to cause a denial of service (memory consumption and device reload) by sending malformed IKEv2 packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCuo75572.

Weakness: CWE-399

Which versions are affected by CVE-2015-0643?

It affects 2 products.

Products include Cisco Ios, Cisco Ios Xe.

How do I fix CVE-2015-0643?

No fix has been published for CVE-2015-0643 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-2015-0643 being exploited?

There is no known exploitation of CVE-2015-0643 in the wild and no public exploit code.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-fmm4-6229-62j8.

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