SB2025021062 - Out-of-bounds read in Linux kernel usb serial driver
Published: February 10, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025021062
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) Out-of-bounds read (CVE-ID: CVE-2025-21689)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the qt2_process_read_urb() function in drivers/usb/serial/quatech2.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4b9b41fabcd38990f69ef0cee9c631d954a2b530
- https://git.kernel.org/stable/c/575a5adf48b06a2980c9eeffedf699ed5534fade
- https://git.kernel.org/stable/c/6068dcff7f19e9fa6fa23ee03453ad6a40fa4efe
- https://git.kernel.org/stable/c/6377838560c03b36e1153a42ef727533def9b68f
- https://git.kernel.org/stable/c/8542b33622571f54dfc2a267fce378b6e3840b8b
- https://git.kernel.org/stable/c/94770cf7c5124f0268d481886829dc2beecc4507
- https://git.kernel.org/stable/c/f371471708c7d997f763b0e70565026eb67cc470
- https://git.kernel.org/stable/c/fa4c7472469d97c4707698b4c0e098f8cfc2bf22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.290