SB2025031017 - Privilege escalation in Linux kernel mmc core driver
Published: March 10, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025031017
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2022-49267)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error caused by usage of sprintf() function in drivers/mmc/core/bus.c, drivers/mmc/core/sdio.c, drivers/mmc/core/sdio_bus.c, drivers/mmc/core/sd.c, and drivers/mmc/core/mmc.c files. A local user can trigger memory corruption and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/659ca56b5415c7a1d05e185c36fad80ba165d063
- https://git.kernel.org/stable/c/c4ab65738ab3e21fe519ee46b2051222bc8e32ef
- https://git.kernel.org/stable/c/f5d8a5fe77ce933f53eb8f2e22bb7a1a2019ea11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18