CVE-2023-32246
Last modified
CVE-2023-32246 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: ksmbd: call rcu_barrier() in ksmbd_server_exit() racy issue is triggered the bug by racing between closing a connection and rmmod. In ksmbd, rcu_barrier() is not called at module unload time, so nothing prevents ksmbd from getting unloaded while it still has RCU callbacks pending. EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: call rcu_barrier() in ksmbd_server_exit() racy issue is triggered the bug by racing between closing a connection and rmmod. In ksmbd, rcu_barrier() is not called at module unload time, so nothing prevents ksmbd from getting unloaded while it still has RCU callbacks pending. It leads to trigger unintended execution of kernel code locally and use to defeat protections such as Kernel Lockdown
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.15, < 5.15.111 |
| Linux | Linux Kernel | >= 5.16, < 6.1.28 |
| Linux | Linux Kernel | >= 6.2, < 6.2.15 |
| Linux | Linux Kernel | >= 6.3, < 6.3.2 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2023-32246?
How severe is CVE-2023-32246?
How do I fix CVE-2023-32246?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2023
- CVE-2023-32240Missing Authorization vulnerability in Xtemos WoodMart allow…5.4
- CVE-2023-32241Unauth. Reflected Cross-Site Scripting (XSS) vulnerability i…6.1
- CVE-2023-32242Deserialization of Untrusted Data vulnerability in xtemos Wo…9.8
- CVE-2023-32243Improper Authentication vulnerability in WPDeveloper Essenti…9.8
- CVE-2023-32244Improper Privilege Management vulnerability in xtemos Woodma…9.8
- CVE-2023-32245Cross-Site Request Forgery (CSRF) vulnerability in WPDevelop…8.8
- CVE-2023-32247A flaw was found in the Linux kernel's ksmbd, a high-perform…7.5
- CVE-2023-32248A flaw was found in the Linux kernel's ksmbd, a high-perform…7.5
- CVE-2023-32249In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2023-3225The Float menu WordPress plugin before 5.0.3 does not saniti…4.8
- CVE-2023-32250A flaw was found in the Linux kernel's ksmbd, a high-perform…8.1
- CVE-2023-32251A vulnerability has been identified in the Linux kernel's ks…3.7
Are you affected by CVE-2023-32246?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST