SB2024060547 - Buffer overflow in Linux kernel smc
Published: June 5, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060547
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-2021-47536)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the smc_lgr_unregister_conn() function in net/smc/smc_core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/77731fede297a23d26f2d169b4269466b2c82529
- https://git.kernel.org/stable/c/95518fe354d712dca6f431cf2a11b8f63bc9a66c
- https://git.kernel.org/stable/c/789b6cc2a5f9123b9c549b886fdc47c865cfe0ba
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.84
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16