CVE-2024-35868: smb: client: fix potential UAF in cifs_stats_proc_write()
First published: Sun May 19 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in cifs_stats_proc_write() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.1.85 | |
| Linux Kernel | >=6.2<6.6.26 | |
| Linux Kernel | >=6.7<6.8.5 | |
| Linux Kernel | =6.9-rc1 | |
| Linux Kernel | =6.9-rc2 | |
| 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/stable/c/5b5475ce69f02ecc1b13ea23106e5b89c690429b
- https://git.kernel.org/stable/c/8fefd166fcb368c5fcf48238e3f7c8af829e0a72
- https://git.kernel.org/stable/c/cf03020c56d3ed28c4942280957a007b5e9544f7
- https://git.kernel.org/stable/c/d3da25c5ac84430f89875ca7485a3828150a7e0a
- https://launchpad.net/bugs/cve/CVE-2024-35868
- https://git.kernel.org/linus/d3da25c5ac84430f89875ca7485a3828150a7e0a
- https://security-tracker.debian.org/tracker/CVE-2024-35868
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35868
- https://nvd.nist.gov/vuln/detail/CVE-2024-35868
- https://ubuntu.com/security/CVE-2024-35868
Frequently Asked Questions
What is the severity of CVE-2024-35868?
CVE-2024-35868 has been classified with a medium severity level due to its potential to cause use-after-free vulnerabilities.
How do I fix CVE-2024-35868?
To mitigate CVE-2024-35868, update your Linux kernel to a version that includes the fix, specifically versions 6.1.123-1, 6.1.119-1, 6.12.9-1, or 6.12.10-1.
Which Linux kernel versions are affected by CVE-2024-35868?
CVE-2024-35868 affects Linux kernel versions 5.10 to 6.1.85 and versions 6.2 through 6.6.26.
What components are involved in CVE-2024-35868?
CVE-2024-35868 involves the SMB client in the Linux kernel, specifically related to cifs_stats_proc_write().
Is there a workaround for CVE-2024-35868?
Currently, the best course of action for CVE-2024-35868 is to apply the recommended kernel updates, as no specific workaround is available.
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