Brocade Assessed Risk: LOW    
Affected CVE ID: CVE-2026-3698      
 Base Score:6.9 MEDIUM
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
CWE-824     Access of Uninitialized Pointer     
CWE-908     Use of Uninitialized Resource     
Brocade Security Advisory ID:    BSA-2026-3698
Component: OpenSSH  

Summary
Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration. 

Product Affected
Brocade ASCG OVA

Solution
Security update is provided in Brocade ASCG 3.5.0 OVA

Disclaimer

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