SB2024070891 - Information disclosure in Linux kernel smb client
Published: July 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024070891
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2024-26822)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper management of internal resources within the automount_fullpath() and cifs_do_automount() functions in fs/smb/client/namespace.c. A local user can force the SMB client to reuse its parent mount uid, gid and cruid and gain unauthorized access to information.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/c2aa2718cda2d56b4a551cb40043e9abc9684626
- https://git.kernel.org/stable/c/7590ba9057c6d74c66f3b909a383ec47cd2f27fb
- https://git.kernel.org/stable/c/4508ec17357094e2075f334948393ddedbb75157
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8