CVE-2023-52440
Last modified
CVE-2023-52440 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes. cifs_arc4_crypt copy to session key array from SessionKey from client.. EPSS estimates a 36.69% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes. cifs_arc4_crypt copy to session key array from SessionKey from client.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.17.0, < 6.1.52 |
| Linux | Linux Kernel | >= 6.2.0, < 6.4.15 |
| Linux | Linux Kernel | >= 6.5.0, < 6.5.2 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-52440?
How severe is CVE-2023-52440?
How do I fix CVE-2023-52440?
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-2023-52435In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2023-52436In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2023-52437Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2023-52438In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2023-52439In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2023-5244Cross-site Scripting (XSS) - Reflected in GitHub repository …6.1
- CVE-2023-52441In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2023-52442In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2023-52443In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2023-52444In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2023-52445In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2023-52446In the Linux kernel, the following vulnerability has been re…7.8
Are you affected by CVE-2023-52440?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST