Summary

The Linux Kernel SUN RPC subsystem is vulnerable to memory corruption due to how a use-after-free (UAF) can occur in the inet_put_port() function as a result of xs_xprt_free() being called before all sockets are closed.

An attacker could abuse this flaw in order to corrupt kernel memory which could potentially allow for arbitrary code execution.

Products Affected

• No Brocade products are known to be affected by this vulnerability

Products Not Affected

• Brocade Fabric OS is not affected by this vulnerability
  [VEX Justification: Vulnerable_code_not_in_execute_path]
• Brocade SANnav base OS (OVA deployments) are not affected by this vulnerability
  [VEX Justification: Vulnerable_code_not_in_execute_path]
• Brocade SANnav standard deployments are not affected by this vulnerability
  [VEX Justification: Component_not_present]
• Brocade ASCG is not affected by this vulnerability
  [VEX Justification: Component_not_present]

Solution

• While not exploitable, security update provided in Brocade Fabric OS 9.2.1c and 9.2.2a

Revision History

Disclaimer

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