# Override package: openssh

## EL9

- Version `8.7p1-38.4.el9_4.security.0.9`
- Based on `8.7p1-38.el9_4.4`

### Changes summary

- Instead of linking against `libsystemd`, load it dynamically in a temporary child process to avoid polluting actual `sshd`'s address space with that library and its many dependencies (shortens `ldd sshd` output from 28 to 20 lines)
- Build without Kerberos support (further shortens `ldd sshd` from 20 to 13 lines)
- Fix [CVE-2024-6409](../issues/CVE-2024-6409.md)

### Change log

```
* Wed Jul 17 2024 Solar Designer <solar@openwall.com> 8.7p1-38.4.el9_4.security.0.9
- Patch the code to silently ignore GSSAPIKeyExchange when unsupported

* Wed Jul 17 2024 Solar Designer <solar@openwall.com> 8.7p1-38.4.el9_4.security.0.8
- Rebase on 8.7p1-38.4

* Mon Jul 08 2024 Solar Designer <solar@openwall.com> 8.7p1-38.1.el9_4.security.0.7
- Fix CVE-2024-6409

* Mon Jul 08 2024 Solar Designer <solar@openwall.com> 8.7p1-38.1.el9_4.security.0.6
- Rebase on 8.7p1-38.1

* Mon Jul 01 2024 Solar Designer <solar@openwall.com> 8.7p1-38.el9_4.security.0.5
- Fix CVE-2024-6387 regreSSHion

* Mon May 20 2024 Solar Designer <solar@openwall.com> 8.7p1-38.el9_4.security.0.4
- Rebase on 8.7p1-38

* Sat Mar 16 2024 Solar Designer <solar@openwall.com> 8.7p1-34.3.el9_3.security.0.3
- Comment out GSSAPI* lines in /etc/ssh/ssh*_config.d/50-redhat.conf and patch
  the code to silently ignore GSSAPIKexAlgorithms when unsupported (like it is
  in our new without-Kerberos build)

* Mon Mar 11 2024 Solar Designer <solar@openwall.com> 8.7p1-34.3.el9_3.security.0.2
- Rebase 8.7p1-34.el9_3.security.0.1 on 8.7p1-34.3
- Build without Kerberos support (shortens "ldd sshd" from 20 to 13 lines)

* Wed Nov 22 2023 Solar Designer <solar@openwall.com> 8.7p1-34.el9_3.security.0.1
- Rebase 8.7p1-30.el9.security.0.2 on 8.7p1-34

* Sat Oct 07 2023 Solar Designer <solar@openwall.com> 8.7p1-30.el9.security.0.2
- Load libsystemd.so.0, not libsystemd.so, as the latter is only provided by
  systemd-devel

* Mon Aug 28 2023 Solar Designer <solar@openwall.com> 8.7p1-30.el9.security.0.1
- Instead of linking against libsystemd, load it dynamically in a temporary
  child process to avoid polluting actual sshd's address space with that
  library and its many dependencies (shortens "ldd sshd" from 28 to 20 lines)
```