CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's SMB client, specifically in the handling of POSIX SID length parsing, where insufficient boundary checks can lead to the acceptance of truncated buffers. This flaw may allow an attacker to exploit the system by manipulating SID data, potentially leading to unauthorized access or privilege escalation. Organizations using Linux systems, particularly those relying on SMB for file sharing, should prioritize patching to mitigate the risk associated with this high-severity vulnerability.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: harden POSIX SID length parsing posix_info_sid_size() reads sid[1] to obtain the subauthority count, but its existing boundary check still accepts buffers with only one remaining byte. Require two bytes before reading sid[1] so all client paths that reuse the helper reject truncated POSIX SIDs safely.