SB2024050837 - Denial of service in Linux kernel ocfs2
Published: May 8, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024050837
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) Buffer overflow (CVE-ID: CVE-2021-47114)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in fs/ocfs2/file.c. A local user can trigger memory corruption and crash the kernel.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/624fa7baa3788dc9e57840ba5b94bc22b03cda57
- https://git.kernel.org/stable/c/33e03adafb29eedae1bae9cdb50c1385279fcf65
- https://git.kernel.org/stable/c/a1700479524bb9cb5e8ae720236a6fabd003acae
- https://git.kernel.org/stable/c/cec4e857ffaa8c447f51cd8ab4e72350077b6770
- https://git.kernel.org/stable/c/cc2edb99ea606a45182b5ea38cc8f4e583aa0774
- https://git.kernel.org/stable/c/c8d5faee46242c3f33b8a71a4d7d52214785bfcc
- https://git.kernel.org/stable/c/0a31dd6fd2f4e7db538fb6eb1f06973d81f8dd3b
- https://git.kernel.org/stable/c/6bba4471f0cc1296fe3c2089b9e52442d3074b2e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.236
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.194
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.272
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.272
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.43
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.125