SB20240531181 - Use-after-free in Linux kernel usb mtu3 driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531181
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) Use-after-free (CVE-ID: CVE-2021-46930)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mtu3_alloc_request() function in drivers/usb/mtu3/mtu3_gadget.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/585e2b244dda7ea733274e4b8fa27853d625d3bf
- https://git.kernel.org/stable/c/3b6efe0b7ba03cc2acf0694b46d6ff33c5b4c295
- https://git.kernel.org/stable/c/249ddfbe00570d6dc76208e88017937d4d374c79
- https://git.kernel.org/stable/c/8c313e3bfd9adae8d5c4ba1cc696dcbc86fbf9bf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.90
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.170