SB2024053169 - Use-after-free in Linux kernel smb client
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053169
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-35863)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the is_valid_oplock_break() function in fs/smb/client/misc.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/494c91e1e9413b407d12166a61b84200d4d54fac
- https://git.kernel.org/stable/c/0a15ba88a32fa7a516aff7ffd27befed5334dff2
- https://git.kernel.org/stable/c/16d58c6a7db5050b9638669084b63fc05f951825
- https://git.kernel.org/stable/c/69ccf040acddf33a3a85ec0f6b45ef84b0f7ec29
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.85
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.26
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.5