SB20250620156 - Buffer overflow in Linux kernel misc driver
Published: June 20, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250620156
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-2022-49952)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the fastrpc_cb_probe() function in drivers/misc/fastrpc.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0e33b0f322fecd7a92d9dc186535cdf97940a856
- https://git.kernel.org/stable/c/9baa1415d9abdd1e08362ea2dcfadfacee8690b5
- https://git.kernel.org/stable/c/c0425c2facd9166fa083f90c9f3187ace0c7837a
- https://git.kernel.org/stable/c/c99bc901d5eb9fbdd7bd39f625e170ce97390336
- https://git.kernel.org/stable/c/ec186b9f4aa2e6444d5308a6cc268aada7007639
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.213