PAN-OS 8.1.15 Addressed Issues

PAN-OS® 8.1.15 addressed issues.
Issue ID
Fixed an issue where the WF-500 cluster did not synchronize verdicts after successful verdict recheck queries with the WildFire global cloud.
Fixed an intermittent issue on WildFire appliances where failure to purge old sample information to make room for new samples caused a cluster to be unavailable.
A fix was made to address a Security Assertion Markup Language (SAML) authentication issue (CVE-2020-2021).
Fixed an issue where SSL connections were blocked if you enabled decryption with the option to block sessions that have expired certificates. This issue included servers that sent an expired AddTrust certificate authority (CA) in the certificate chain.
Fixed an issue where a configuration audit created a large number of opresult.out files, which filled up the session/pan/user_tmp directory in opt/pancfg. This caused a slow Panorama response until a device restart was performed or the files were manually deleted from the root of the device.
Fixed an issue where SNMP objects from the HOST-RESOURCES-MIB returned incorrect values when queried.
PA-7000 Series firewalls only
) Fixed an issue where SSL decryption failed due to memory allocation failure.
Fixed an issue where, after loading a saved configuration snapshot by API, a custom role-based administrator required Superuser privileges to perform a full commit.
Fixed an issue where the YARA version caused the WF-500 appliance virtual machine controllers to stop responding.
Fixed an issue where WildFire submission reports could not be viewed when the firewall was using the public WildFire cloud.
Fixed an issue where a process (configd) failed to restart even when Panorama displayed the following message:
virtual memory exceeded, restarting
PAN-145195, PAN-145151, PAN-145150, and PAN-145149
A fix was made to address a buffer overflow vulnerability in PAN-OS that allowed an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface (CVE-2020-2040).
Fixed an issue where Slot 8 path monitoring failure occurred due to a memory buildup in a process (logrcvr) that was caused by slow communication and connection between log forwarding and Cortex Data Lake.
Fixed an issue where the dataplane restarted during a commit when
was enabled.
Fixed an intermittent issue where the firewall used IP addresses instead of domain names for URL category lookup after upgrading to 9.0.6.
Fixed an issue in the URL process where a process (devsrvr) stopped responding.
PA-5200 Series and PA-7000 Series firewalls only
) Fixed an issue where high and continuous CPU utilization was seen on dataplanes after IPSec Encapsulating Security Payload (ESP) rekeying occurred for multiple tunnels.
Fixed an issue where a process (configd) restarted and administrators received one of the following error messages:
Timed out while getting config lock. Please try again
Please wait while the server reboots...
due to a database error.
Fixed a performance drop issue seen when using API to configure larger sets of objects (more than 25 objects).
Fixed an issue where, in a high availability (HA) active/active configuration in a virtual wire deployment with asymmetric traffic, decryption did not work for some sites.
Fixed an issue with internal buffer and file sizes where logs were discarded due to slow log purging when the incoming log rate was high.
Fixed a configuration lock issue where Panorama timed out due to a process (configd) being unable to read another process (mongod).
Fixed an issue where URL filtering used the IP address instead of the hostname, which led to incorrect URL categorization.
Fixed an issue where PA-7000 20GXM and PA-7000 20GQXM Network Processing Cards (NPCs) failed to process some sessions for Layer 7 inspection due to internal maximum threshold value that was not set.
Fixed an issue where fragmented packets leaked, which caused the depletion of Work Query Entry (WQE) pools.
Fixed an issue in Panorama where the Security policy
displayed the serial number of the targeted device instead of the hostname.
PA-7000 Series with 100GB NPC only
) Fixed an issue during firewall bootup where the following error message:
Bootloader upgrade failed, ret 255
appeared when small form-factor pluggable (SFP) modules were installed.
Fixed an issue where the Log Processing Card (LPC) did not come up intermittently in a fully loaded PA-7000 Series.
Fixed an issue in Panorama where a memory leak occurred during an HA sync commit.
Fixed an issue where a process (devsrvr) restarted when it hit the limit of the number of custom patterns available in the allocated memory.
Fixed an issue where after making configuration changes and selecting
Preview Changes
, a 500 Internal Server Error message displayed due to a memory leak.
Fixed an issue where scheduled reports did not run on a PA-7000 Series firewall not managed by Panorama after upgrade to 8.1.10 or 9.0.4 and later versions.
Fixed a rare issue where log forwarding from a PA-7080 firewall to an M-600 appliance appeared to slow or fail due to an elastic search error.
Fixed an issue where the
log filter (
Monitor > Logs > Traffic
) was not maintained when viewing the
Log Viewer
for a Security policy rule (
Policies > Security
) from the drop-down.
Fixed an issue on Panorama where Applications and Threats content update deployment failed due to the content version date check.
Fixed an issue on Panorama where processes (vld) ran on high CPU when the incoming system log rate was 0.
Fixed an issue where a process (mgmtsrvr) stopped responding and was inaccessible through SSH or HTTPS until the firewall was power cycled.
Fixed an issue with a memory leak in a process (configd) where virtual memory exceeded the limit, which caused the process to restart.
Fixed an issue where the /opt/pancfg partition became full due to a large amount of botnet reports that were not automatically deleted.
Fixed an issue where the Panorama Template did not allow for
Ethernet Interface Link Speed
configurations greater than 1,000Mbps.
Fixed an issue where a commit from a Panorama appliance running PAN-OS 9.1 to a managed firewall running PAN-OS 9.0 or earlier failed with the following error message in ms.log:
error generating tranform ike-pre-transform.xsl
Fixed an issue where the firewall did not fail over to the secondary LDAP server when the primary LDAP server was not reachable and the configured LDAP bind timeout was not properly honored when SSL protocol was used.
Fixed an issue where the
, and
fields did not populate in the threat logs if the fields were out of order.
Fixed an issue where email header information intermittently was not present in threat logs.
Fixed an issue where a process (panio) used unnecessary memory and caused an out-of-memory (OOM) condition on the dataplane if the dataplane was already low on memory.
Fixed an issue on Panorama M-Series and virtual appliances where you were unable to query Cortex Data Lake by the serial number filter.
Fixed an issue where a process (configd) crashed while making configuration changes on Panorama.
Fixed an issue where a process (mgmtsrvr) stopped responding due to a memory corruption issue when acquiring a configuration lock.
Firewalls with an AutoFocus license only
) Fixed an issue where AutoFocus threat intelligence did not display when hovering over source and destination addresses in the logs when you configure a service route or proxy.
Fixed an issue where the firewall did not process the TLS record in SSL Inbound Inspection as expected, which introduced out-of-order packets in the transmit stage packet capture and affected client performance while accessing HTTP video applications.
Fixed an issue where an incorrect optimization could cause IP address-to-user mapping to not update within 60 seconds.
Fixed an issue where the firewall generated excessive logs for content decoder (CTD) errors.
Fixed a rare issue where
logs and
URL filtering
logs stopped generating.
Fixed an issue where threat
field of a threat
Custom Report
displayed the threat ID instead of the threat name.
Fixed an issue where software deployment failed for managed devices.
Fixed an issue where Panorama was unable to access with the configure proxy option.
Fixed an issue where the dataplane crashed while freeing up memory due to a corrupted or long certificate field in the handshake.
Fixed an issue where a daemon (routed) stopped responding when authentication was used for RIP.
PA-3200 Series firewalls only
) Fixed an issue where the firewall stopped recording dataplane diagnostic data in dp-monitor.log after a few hours of uptime.
Fixed an issue where the OSPF summary Link State Advertisement (LSA) for the default route were not advertised by the Area Border Router (ABR).
Fixed an issue on an M-Series appliances in an HA active/passive configuration where the schedules (
Device > Dynamic Updates
) were unresponsive after a failover or restart of Panorama.
Fixed an issue where a process (routed) restarted when navigating through
tabs in
Virtual Routers
Fixed an issue where
debug software pprof service <service-name>
CLI command did not yield any data.

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