CVE-2023-32250: Linux Kernel ksmbd Session Race Condition Remote Code Execution Vulnerability
First published: Sun May 21 2023(Updated: )
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_SESSION_SETUP commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.4 | 6.4 |
| Linux kernel | <6.4 | |
| Red Hat Kernel-devel | ||
| Linux Kernel | <6.4 | |
| Linux Kernel | >=5.15<5.15.145 | |
| Linux Kernel | >=5.16<6.1.29 | |
| Linux Kernel | >=6.2<6.2.16 | |
| Linux Kernel | >=6.3<6.3.2 | |
| NetApp HCI | ||
| NetApp HCI Storage Node | ||
| NetApp H300S Firmware | ||
| NetApp H410S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700S | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2208849
- https://access.redhat.com/security/cve/CVE-2023-32250
- https://www.zerodayinitiative.com/advisories/ZDI-23-698/
- https://security.netapp.com/advisory/ntap-20230824-0004/
- https://launchpad.net/bugs/cve/CVE-2023-32250
- https://github.com/torvalds/linux/commit/f5c779b7ddbda30866cf2a27c63e34158f858c73
- https://access.redhat.com/security/cve/cve-2023-32250
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32250
- https://nvd.nist.gov/vuln/detail/CVE-2023-32250
- https://security-tracker.debian.org/tracker/CVE-2023-32250
- https://ubuntu.com/security/CVE-2023-32250
- https://git.kernel.org/linus/f5c779b7ddbda30866cf2a27c63e34158f858c73
Frequently Asked Questions
What is the severity of CVE-2023-32250?
CVE-2023-32250 has been classified as a high severity vulnerability due to its potential impact on systems running the affected versions of the Linux kernel.
How do I fix CVE-2023-32250?
To fix CVE-2023-32250, upgrade to kernel versions 5.10.223-1, 5.10.226-1, 6.1.119-1, or later patched releases.
What versions of the Linux kernel are affected by CVE-2023-32250?
CVE-2023-32250 affects Linux kernel versions from 5.15.0 up to but not including 6.4.
Can CVE-2023-32250 be exploited remotely?
Yes, CVE-2023-32250 can be exploited remotely if the affected system is accessible over the network.
What components of the Linux kernel are impacted by CVE-2023-32250?
CVE-2023-32250 specifically impacts the ksmbd, which is a high-performance in-kernel SMB server.
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