SB2025042239 - Use-after-free in Linux kernel usb peak_usb driver
Published: April 22, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025042239
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) Use-after-free (CVE-ID: CVE-2021-47670)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the pcan_usb_fd_decode_canmsg() and pcan_usb_fd_decode_status() functions in drivers/net/can/usb/peak_usb/pcan_usb_fd.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/50aca891d7a554db0901b245167cd653d73aaa71
- https://git.kernel.org/stable/c/5408824636fa0dfedb9ecb0d94abd573131bfbbe
- https://git.kernel.org/stable/c/ddd1416f44130377798c1430b76503513b7497c2
- https://git.kernel.org/stable/c/ec939c13c3fff2114479769c8380b7f1a54feca9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.11