SB20241022213 - Buffer overflow in Linux kernel smb client
Published: October 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB20241022213
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2024-49996)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the parse_reparse_posix() and cifs_reparse_point_to_fattr() functions in fs/smb/client/reparse.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/c6db81c550cea0c73bd72ef55f579991e0e4ba07
- https://git.kernel.org/stable/c/803b3a39cb096d8718c0aebc03fd19f11c7dc919
- https://git.kernel.org/stable/c/c173d47b69f07cd7ca08efb4e458adbd4725d8e9
- https://git.kernel.org/stable/c/e2a8910af01653c1c268984855629d71fb81f404
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.231
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.174
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.287
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.120
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.55