CVE-2018-10933 does not affect the firewall at any software code based on my findings. This is because the libssh process is not a part of the firewall software code. Please see below for more information
For PAN OS: The PAN OS is not affected by this vulnerability as libssh is not a part of PAN-OS. Following is the link for the list of the open source softwere used in the PAN OS. https://www.paloaltonetworks.com/documentation/oss-listings/oss-listings/pan-os-oss-listings/pan-os-8-1-open-source-software-oss-listing.
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