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Release Notes Version 6.6

  • Last updated on

Read Before Updating

  • Before installing any firmware version, back up your configuration and read all release notes that apply to versions more recent than the one currently running on your system.

  • Before upgrading a virtual machine, Barracuda Networks recommends taking a snapshot of that virtual machine.

  • Do not manually reboot your system at any time during an update unless otherwise instructed by Barracuda Networks Technical Support. Depending on your current firmware version and other system factors, updating can take up to 10 minutes. If the process takes longer, contact Barracuda Networks Technical Support for further assistance.

Firmware Version 6.6

Enhancements

  • OpenSSL is upgraded to version 3.0 for enhanced security. [BNADC-15601]

  • Support for SameSite cookie attributes is added under Cookie Security. [BNADC-14885]

  • The GSLB service now supports the round-robin method to handle requests within the same zone. [BNADC-15474]

  • IO operations are minimized to improve the Hardware life. [BNADC-14985]

  • Added support for new SNMP OIDs for Link status, Link utilization, Link errors, Memory Usage, CPU Utilization, CPU Fan Speed, and System Fan Speed. [BNADC-15679]

Fixes

  • The TCP proxy service created with the port range specified in descending order is now handled correctly. [BNADC-15899]

  • The issue with the server certificate not being updated in the CA bundle after deletion has now been fixed. [BNADC-15886]

  • The server username under FTP access logs can now be configured with special characters. [BNADC-15680]

  • In a rare scenario, the data path was interrupted and resulted in logging IPS logs. This has been addressed. [BNADC-15553]

  • When the Instant SSL service is disabled, it now properly deactivates both its redirect service and the HTTPS service. [BNADC-15324]

  • The Custom Virtual Interface created on a bonded interface is now handled correctly. [BNADC-15108]

  • Custom role users can now log in to the ADC web interface after the firmware upgrade. [BNADC-15058]

  • Attack graphs now show the time according to the configured timezone settings. [BNADC-10084]

  • nghttp2 versions before 1.61.0 allowed excessive CPU usage due to the unbounded reading of CONTINUATION frames, which is mitigated in v1.61.0 by limiting their number per stream. [BNADC-15859]

  • Vulnerability Fix: HTTP/2 Rapid Reset Attack vulnerabilities mentioned in CVE-2023-44487 have been addressed. [BNADC-15674] [BNADC-15647]

- From firmware version 6., Hardware SSL acceleration will be disabled. SSL functionality will continue to work with the software path.[BNADC-15918]
- TLS 1.0 and TLS 1.1 are not supported in the firmware version 6.6. [BNADC-15776]
- After upgrading to firmware version 6.6, services using weak ciphers will be disabled. To prevent any service interruptions, administrators are advised to proactively disable weak ciphers before the firmware upgrade. [BNADC-15926]