A Denial of Service vulnerability related to command handling has been identified in FlexNet Publisher lmadmin.exe 11.16.2. Please see the Symptoms section for more details.
If you do not distribute lmadmin to your customers, there is no further action on your part. If you do, you must distribute to those same customers the security update mentioned in the Resolution section of this article.
This security vulnerability has been assigned the CVE ID number of CVE-2019-8960.
The message reading function used in lmadmin.exe can, given a certain message, call itself again and then wait for a further message. With a particular flag set in the original message, but no second message received, the function eventually return an unexpected value which leads to an exception being thrown. The end result can be process termination.
The FlexNet Publisher 2019 R3 SP1 (220.127.116.11) addresses the security vulnerability and is available from Flexera’s Product and License Center.
We advise all FlexNet Publisher customers update lmadmin.exe to FlexNet Publisher 18.104.22.168.