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CERT Coordination Center

Flexera Software FlexNet Publisher lmgrd contains a buffer overflow vulnerability

Vulnerability Note VU#485744

Original Release Date: 2016-02-22 | Last Revised: 2016-04-04


Flexera Software FlexNet Publisher, including all versions prior to, lmgrd and custom vendor daemon servers contain a buffer overflow vulnerability that may be leveraged to gain code execution.


Flexera Software FlexNet Publisher is a software license manager that provides licensing models and solutions for software vendors. A buffer overflow vulnerability in a string copying function of lmgrd and custom vendor daemon servers may enable a remote attacker to execute arbitrary code in affected server hosts.

For more information, refer to the researchers' blog post and advisory.


A remote, unauthenticated attacker may be able to execute arbitrary code in affected server hosts.


Apply an update

Software vendors that distribute vulnerable lmgrd or vendor daemon components should obtain FlexNet Publisher 2015 ( Security Update 1 or later from Flexera Software's Product and License Center. Users of affected software should contact product vendors for update information.

Vendor Information

Note that any vendor that distributes lmgrd or a customized version with their products may be affected. As the CERT/CC becomes aware of specific vendors and products, we will add them to the list below.

Affected   Unknown   Unaffected


Updated:  March 10, 2016



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

Vendor References

Flexera Software

Updated:  February 22, 2016

Statement Date:   February 09, 2016



Vendor Statement

Flexera Software has previously disclosed this vulnerability to all customers of FlexNet Publisher. Each FlexNet Publisher customer is managing their own disclosure and patching processes, as they see fit.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

CVSS Metrics

Group Score Vector
Base 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal 7.8 E:POC/RL:OF/RC:C
Environmental 5.9 CDP:ND/TD:M/CR:ND/IR:ND/AR:ND



Thanks to Matthew Benton, Ryan Wincey, and Richard Kelley for reporting this vulnerability.

This document was written by Joel Land.

Other Information

CVE IDs: CVE-2015-8277
Date Public: 2016-02-22
Date First Published: 2016-02-22
Date Last Updated: 2016-04-04 16:30 UTC
Document Revision: 26

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