https://seclists.org/oss-sec/2025/q4/334: Systemd vsock sshd

Published Dec 30, 2025
·
Updated

Affected Software

1 affected component
OpenSSH openssh-server
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Frequently Asked Questions

1

What is the severity of vulnerability in OpenSSH openssh-server related to systemd vsock sshd?

The severity of the vulnerability in OpenSSH openssh-server related to systemd vsock sshd is currently assessed as moderate due to its potential to expose local socket interfaces.

2

How do I fix the vulnerability ID related to systemd vsock sshd?

To fix the vulnerability in OpenSSH openssh-server related to systemd vsock sshd, execute the commands 'systemctl mask --now sshd-unix-local.socket' and 'systemctl mask sshd-vsock.socket' to disable the affected sockets.

3

What impact does vulnerability ID related to systemd vsock sshd have on security?

The impact of the vulnerability in OpenSSH openssh-server related to systemd vsock sshd allows unauthorized access through unmasked sockets, potentially leading to local privilege escalation.

4

Is the vsock socket in OpenSSH openssh-server tested?

The vsock socket in OpenSSH openssh-server has not been tested thoroughly, as it is mentioned only in related documentation and sources.

5

Are there any workarounds for the vulnerability in OpenSSH openssh-server regarding systemd vsock sshd?

A workaround for the vulnerability in OpenSSH openssh-server regarding systemd vsock sshd is to mask the unix and vsock sockets to prevent unauthorized access.

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