CVE-2023-38429
First published: Mon Jul 17 2023(Updated: )
An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/connection.c in ksmbd has an off-by-one error in memory allocation (because of ksmbd_smb2_check_message) that may lead to out-of-bounds access.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.15<5.15.113 | |
| Linux Kernel | >=5.16<6.1.30 | |
| Linux Kernel | >=6.2<6.3.4 | |
| Linux Kernel | <6.3.4 | |
| 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/ksmbd?id=443d61d1fa9faa60ef925513d83742902390100f
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4
- https://launchpad.net/bugs/cve/CVE-2023-38429
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-38429
- https://nvd.nist.gov/vuln/detail/CVE-2023-38429
- https://security-tracker.debian.org/tracker/CVE-2023-38429
- https://ubuntu.com/security/CVE-2023-38429
- https://git.kernel.org/linus/443d61d1fa9faa60ef925513d83742902390100f
- https://security.netapp.com/advisory/ntap-20250103-0009/
Frequently Asked Questions
What is the severity of CVE-2023-38429?
CVE-2023-38429 has a medium severity rating due to the potential for out-of-bounds access caused by an off-by-one error in memory allocation.
What versions of the Linux kernel are affected by CVE-2023-38429?
CVE-2023-38429 affects Linux kernel versions prior to 6.3.4, specifically versions 5.15 to 5.15.113, 5.16 to 6.1.30, and 6.2 to 6.3.4.
How do I fix CVE-2023-38429?
To fix CVE-2023-38429, upgrade the Linux kernel to version 6.3.4 or later, or the specified remedial versions for earlier kernels.
What type of vulnerability is CVE-2023-38429?
CVE-2023-38429 is a memory corruption vulnerability due to an off-by-one error in the Linux kernel's ksmbd module.
Can CVE-2023-38429 lead to exploitation by attackers?
Yes, CVE-2023-38429 can potentially allow attackers to exploit the vulnerability for unauthorized access or system crashes due to out-of-bounds memory access.
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