CVE-2023-32251

A vulnerability has been identified in the Linux kernel's ksmbd component (kernel SMB/CIFS server). A security control designed to prevent dictionary attacks, which introduces a 5-second delay during session setup, can be bypassed through the use of asynchronous requests. This bypass negates the intended anti-brute-force protection, potentially allowing attackers to conduct dictionary attacks more efficiently against user credentials or other authentication mechanisms.

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

b096d97f47326b1e2dbdef1c91fab69ffda54d17

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-32251.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "the"
            }
        ]
    }
]