SB20240819155 - Input validation error in Linux kernel landlock
Published: August 19, 2024 Updated: May 12, 2025
Security Bulletin ID
SB20240819155
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2024-42318)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the hook_cred_prepare() and hook_cred_free() functions in security/landlock/cred.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0d74fd54db0bd0c0c224bef0da8fc95ea9c9f36c
- https://git.kernel.org/stable/c/16896914bace82d7811c62f3b6d5320132384f49
- https://git.kernel.org/stable/c/b14cc2cf313bd29056fadbc8ecd7f957cf5791ff
- https://git.kernel.org/stable/c/39705a6c29f8a2b93cf5b99528a55366c50014d1
- https://lore.kernel.org/all/20240817.shahka3Ee1iy@digikod.net/
- https://www.openwall.com/lists/oss-security/2024/08/17/2
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2566
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.165
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.103
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.44