SB2025090892 - Buffer overflow in Linux kernel vmw_vsock
Published: September 8, 2025
Security Bulletin ID
SB2025090892
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) Buffer overflow (CVE-ID: CVE-2025-39718)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the virtio_transport_rx_work() function in net/vmw_vsock/virtio_transport.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/0dab92484474587b82e8e0455839eaf5ac7bf894
- https://git.kernel.org/stable/c/676f03760ca1d69c2470cef36c44dc152494b47c
- https://git.kernel.org/stable/c/969b06bd8b7560efb100a34227619e7d318fbe05
- https://git.kernel.org/stable/c/ee438c492b2e0705d819ac0e25d04fae758d8f8f
- https://git.kernel.org/stable/c/faf332a10372390ce65d0b803888f4b25a388335