CVE-2018-17539 Denial of service in n/a

High 7.5 Published Updated

Remote attackers can cause a denial of service in IP Infusion ZebOS and OcNOS BGP daemons by sending AS paths with eight or more elements.

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-2018-17539?

CVE-2018-17539 is a high-severity denial of service vulnerability in F5 Big-Ip Local Traffic Manager, published on 28 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The BGP daemon (bgpd) in all IP Infusion ZebOS versions to 7.10.6 and all OcNOS versions to 1.3.3.145 allow remote attackers to cause a denial of service attack via an autonomous system (AS) path containing 8 or more autonomous system number (ASN) elements.

Which versions are affected by CVE-2018-17539?

It affects 3 products.

Products include F5 Big-Ip Local Traffic Manager, Ipinfusion Ocnos, Ipinfusion Zebos.

How do I fix CVE-2018-17539?

No fix has been published for CVE-2018-17539 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-2018-17539 being exploited?

There is no known exploitation of CVE-2018-17539 in the wild and no public exploit code.

All F5 Big-Ip Local Traffic Manager vulnerabilities

Sources

Also known as GHSA-j437-j3mv-3fq3.

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