SB2025022217 - Buffer overflow in Linux kernel usb class driver
Published: February 22, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022217
CSH 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 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2025-21704)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the acm_process_notification() and acm_ctrl_irq() functions in drivers/usb/class/cdc-acm.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/383d516a0ebc8641372b521c8cb717f0f1834831
- https://git.kernel.org/stable/c/6abb510251e75f875797d8983a830e6731fa281c
- https://git.kernel.org/stable/c/7828e9363ac4d23b02419bf2a45b9f1d9fb35646
- https://git.kernel.org/stable/c/e563b01208f4d1f609bcab13333b6c0e24ce6a01
- https://git.kernel.org/stable/c/f64079bef6a8a7823358c3f352ea29a617844636
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.16