- Vulnerability/
- USN-7457-1
USN-7457-1: OpenSSH vulnerability
First published: Thu Apr 24 2025(Updated: )
It was discovered that OpenSSH incorrectly handled the DisableForwarding directive. The directive would fail to disable X11 and agent forwarding, contrary to documentation and expectations.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/openssh-client | <1:9.9p1-3ubuntu3.1 | 1:9.9p1-3ubuntu3.1 |
| Ubuntu | =25.04 | |
| All of | ||
| ubuntu/openssh-server | <1:9.9p1-3ubuntu3.1 | 1:9.9p1-3ubuntu3.1 |
| Ubuntu | =25.04 | |
| All of | ||
| ubuntu/openssh-client | <1:9.7p1-7ubuntu4.3 | 1:9.7p1-7ubuntu4.3 |
| Ubuntu | =24.10 | |
| All of | ||
| ubuntu/openssh-server | <1:9.7p1-7ubuntu4.3 | 1:9.7p1-7ubuntu4.3 |
| Ubuntu | =24.10 | |
| All of | ||
| ubuntu/openssh-client | <1:9.6p1-3ubuntu13.11 | 1:9.6p1-3ubuntu13.11 |
| Ubuntu | =24.04 | |
| All of | ||
| ubuntu/openssh-server | <1:9.6p1-3ubuntu13.11 | 1:9.6p1-3ubuntu13.11 |
| Ubuntu | =24.04 | |
| All of | ||
| ubuntu/openssh-client | <1:8.9p1-3ubuntu0.13 | 1:8.9p1-3ubuntu0.13 |
| Ubuntu | =22.04 | |
| All of | ||
| ubuntu/openssh-server | <1:8.9p1-3ubuntu0.13 | 1:8.9p1-3ubuntu0.13 |
| Ubuntu | =22.04 | |
| All of | ||
| ubuntu/openssh-client | <1:8.2p1-4ubuntu0.13 | 1:8.2p1-4ubuntu0.13 |
| Ubuntu | =20.04 | |
| All of | ||
| ubuntu/openssh-server | <1:8.2p1-4ubuntu0.13 | 1:8.2p1-4ubuntu0.13 |
| Ubuntu | =20.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2025-32728
- https://launchpad.net/ubuntu/+source/openssh/1:9.9p1-3ubuntu3.1
- https://launchpad.net/ubuntu/+source/openssh/1:9.7p1-7ubuntu4.3
- https://launchpad.net/ubuntu/+source/openssh/1:9.6p1-3ubuntu13.11
- https://launchpad.net/ubuntu/+source/openssh/1:8.9p1-3ubuntu0.13
- https://launchpad.net/ubuntu/+source/openssh/1:8.2p1-4ubuntu0.13
- https://ubuntu.com/security/notices/USN-7457-1 (Advisory)
Frequently Asked Questions
What is the severity of USN-7457-1?
The severity of USN-7457-1 is considered to be high due to the incorrect handling of the DisableForwarding directive in OpenSSH.
How do I fix USN-7457-1?
To fix USN-7457-1, upgrade your OpenSSH packages to the patched versions 1:9.9p1-3ubuntu3.1 or later.
What versions of OpenSSH are affected by USN-7457-1?
USN-7457-1 affects OpenSSH client and server versions prior to 1:9.9p1-3ubuntu3.1 across various Ubuntu releases.
What systems are impacted by USN-7457-1?
USN-7457-1 impacts Ubuntu systems running versions 25.04, 24.10, 24.04, 22.04, and 20.04 with vulnerable OpenSSH installations.
Is the vulnerability in USN-7457-1 exploitable?
Yes, the vulnerability in USN-7457-1 can be exploited to enable unintended X11 and agent forwarding, posing a security risk.
- collector/usn
- source/Ubuntu
- agent/software-canonical-lookup
- agent/title
- agent/source
- agent/last-modified-date
- agent/references
- agent/softwarecombine
- agent/tags
- agent/type
- agent/description
- agent/first-publish-date
- agent/event
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu
- version/ubuntu/25.04
- version/ubuntu/24.10
- version/ubuntu/24.04
- version/ubuntu/22.04
- version/ubuntu/20.04