Summary

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the `grub_strcpy() `function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching fo

Products Affected

• Brocade SANnav before 2.4.0a

Products Not Affected

• Brocade Fabric OS
  [VEX Justification: Component_not_present]
• Brocade ASCG
  [VEX Justification: Vulnerable_code_not_in_execute_path]

Solution

• Security update provided in Brocade SANnav 2.4.0a and 3.0.0
• While not exploitable, security update provided in Brocade ASCG 3.4.0

Revision History

Disclaimer

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