SB20240604107 - Out-of-bounds read in Linux kernel block driver
Published: June 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240604107
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) Out-of-bounds read (CVE-ID: CVE-2021-47039)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the do_format() function in drivers/block/ataflop.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/07f86aa8f4fe077be1b018cc177eb8c6573e5671
- https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957
- https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13