[USN-8514-1] OpenSSH vulnerability

[noreply+usn-bot at canonical.com]

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Ubuntu Security Notice USN-8514-1
July 06, 2026

openssh vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

OpenSSH could be made to overwrite files as the administrator.

Software Description:
- openssh: secure shell (SSH) for secure access to remote machines

Details:

It was discovered that OpenSSH incorrectly handled file permissions when
downloading files as root using the legacy scp protocol without the
preserve-mode option. An attacker could use this to install setuid or setgid
files on a system, possibly leading to privilege escalation.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS
  openssh-client                  1:7.2p2-4ubuntu2.10+esm8
                                  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-8514-1
  CVE-2026-35385
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