CVE-2016-6273 Denial of service in n/a

High 7.5 Published Updated

Remote attackers can crash the FlexNet Publisher license manager by sending a specific malformed packet, affecting Citrix License Server deployments.

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-2016-6273?

CVE-2016-6273 is a high-severity denial of service vulnerability in n/a, published on 7 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The lmadmin component in Flexera FlexNet Publisher (aka Flex License Manager) before 2015 SP5 and 2016 before R1 SP1, as used by Citrix License Server for Windows before 11.14.0.1 and Citrix License Server VPX before 11.14.0.1, allows remote attackers to cause a denial of service (crash) via a type 2F packet with a '01 19' opcode.

Which versions are affected by CVE-2016-6273?

It affects 2 products.

Products include Citrix License Server, Citrix License Server Vpx.

How do I fix CVE-2016-6273?

No fix has been published for CVE-2016-6273 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-2016-6273 being exploited?

There is no known exploitation of CVE-2016-6273 in the wild and no public exploit code.

Sources

Also known as GHSA-wjgv-7p74-c9qx.

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