SB20240531283 - Out-of-bounds read in Linux kernel mtd maps driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531283
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-2021-46965)
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 bt1_rom_map_copy_from() function in drivers/mtd/maps/physmap-bt1-rom.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/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be
- https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa
- https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb
- https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.36
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13