CVE-2024-46695

Medium

In the Linux kernel, the following vulnerability has been resolved: selinux,smack: don't bypass permissions check in inode_setsecctx hook Marek Gresko reports that the root user on an NFS client is able to change the security labels on files on an NFS filesystem that is exported with root squashing enabled. The end of the kerneldoc comment for __vfs_setxattr_noperm() states: * This function requires the caller to lock the inode's i_mutex before it * is executed. It also assumes that the caller will make the appropriate * permission checks. nfsd_setattr() does do permissions checking via fh_verify() and nfsd_permission(), but those don't do all the same permissions checks that are done by security_inode_setxattr() and its related LSM hooks do. Since nfsd_setattr() is the only consumer of security_inode_setsecctx(), simplest solution appears to be to replace the call to __vfs_setxattr_noperm() with a call to __vfs_setxattr_locked(). This fixes the above issue and has the added benefit of causing nfsd to recall conflicting delegations on a file when a client tries to change its security label.

Package Linux Kernel
Published 2024-09-13
Last modified 2025-11-03
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

4.4

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Weakness type

CWE-276

CVE-2024-46695 is classified as CWE-276

See CWE-276 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 3.11 and later are affected. Fixed in 5.10.227, 5.15.168, 6.1.113, 6.6.49, 6.10.8, 6.11 and their respective stable series.

Affected from
≥ 3.11
Fixed in
✓ 5.10.227 5.10.x ✓ 5.15.168 5.15.x ✓ 6.1.113 6.1.x ✓ 6.6.49 6.6.x ✓ 6.10.8 6.10.x ✓ 6.11

References

The following references provide additional information about CVE-2024-46695 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

6 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2024-46695?

    CVE-2024-46695 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 . It affects Linux kernel versions from 3.11 onward and has been patched in 5.10.227, 5.15.168, 6.1.113 and others. CVE-2024-46695 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-46695?

    CVE-2024-46695 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N .

  • Is there a patch available for CVE-2024-46695?

    Yes — CVE-2024-46695 has been patched. Fixed versions include 5.10.227, 5.15.168, 6.1.113 and others. If you are running Linux kernel 3.11 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-46695 actively exploited?

    No — CVE-2024-46695 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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