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Ubuntu 16.04 LTS: USN-6560-3 Moderate: OpenSSH Command Injection

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Calendar Grey September 16, 2024
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Ubuntu has released Security Notice USN-6560-3 addressing a vulnerability in OpenSSH that permits attackers to leverage malicious input.
OpenSSH could be made to crash or run programs as your login if it received a specially crafted input.

Summary

OpenSSH could be made to crash or run programs as your login

if it received a specially crafted input.

Software Description:

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

Details:

USN-6560-2 fixed a vulnerability in OpenSSH. This update provides

the corresponding update for Ubuntu 16.04 LTS.

Original advisory details:

It was discovered that OpenSSH incorrectly handled user names or host

names with shell metacharacters. An attacker could possibly use this

issue to perform OS command injection.

Topics%20covered

Topics Covered

security advisory Ubuntu OpenSSH OS command injection craft input

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+esm6
                                  Available with Ubuntu Pro
  openssh-server                  1:7.2p2-4ubuntu2.10+esm6
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-6560-3

https://ubuntu.com/security/notices/USN-6560-2

https://ubuntu.com/security/notices/USN-6560-1

CVE-2023-51385

Ubuntu Security Notice USN-6560-3

Topics%20covered

Topics Covered

security advisory Ubuntu OpenSSH OS command injection craft input

Package Information

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