CVE-2023-38427: Integer Underflow
First published: Tue Jul 18 2023(Updated: )
An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/smb2pdu.c in ksmbd has an integer underflow and out-of-bounds read in deassemble_neg_contexts.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.15<5.15.145 | |
| Linux Kernel | >=5.16<6.1.34 | |
| Linux Kernel | >=6.2<6.3.8 | |
| netapp h300s | ||
| netapp h410s | ||
| netapp h500s | ||
| netapp h700s | ||
| Linux Kernel | <6.3.8 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/smb/server?id=f1a411873c85b642f13b01f21b534c2bab81fc1b
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.8
- https://security.netapp.com/advisory/ntap-20230824-0011/
- https://launchpad.net/bugs/cve/CVE-2023-38427
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-38427
- https://nvd.nist.gov/vuln/detail/CVE-2023-38427
- https://security-tracker.debian.org/tracker/CVE-2023-38427
- https://ubuntu.com/security/CVE-2023-38427
- https://git.kernel.org/linus/f1a411873c85b642f13b01f21b534c2bab81fc1b
Frequently Asked Questions
What is the severity of CVE-2023-38427?
CVE-2023-38427 is classified as a medium-level vulnerability with potential impact on affected systems.
How do I fix CVE-2023-38427?
To fix CVE-2023-38427, update your Linux kernel to version 6.3.9 or later, or one of the patched versions specified in your distribution's advisory.
Which software is affected by CVE-2023-38427?
CVE-2023-38427 affects various versions of the Linux kernel prior to 6.3.8 and specific NetApp hardware like the H300s, H410s, H500s, and H700s.
What is the nature of the vulnerability in CVE-2023-38427?
CVE-2023-38427 involves an integer underflow and out-of-bounds read in the Linux kernel's ksmbd component.
When was CVE-2023-38427 last updated?
CVE-2023-38427 was last updated on 29 November 2024.
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