USN-7270-2

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Source

https://ubuntu.com/security/notices/USN-7270-2

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7270-2.json

JSON Data

https://api.osv.dev/v1/vulns/USN-7270-2

Related

Published

2025-02-18T18:00:52.868188Z

Modified

2025-02-18T18:00:52.868188Z

Summary

openssh vulnerability

Details

USN-7270-1 fixed a vulnerability in OpenSSH. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

It was discovered that the OpenSSH client incorrectly handled the non-default VerifyHostKeyDNS option. If that option were enabled, an attacker could possibly impersonate a server by completely bypassing the server identity check. (CVE-2025-26465)

References

Affected packages

Ubuntu:Pro:16.04:LTS / openssh

Package

Name: openssh
Purl: pkg:deb/ubuntu/openssh@1:7.2p2-4ubuntu2.10+esm7?arch=source&distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:7.2p2-4ubuntu2.10+esm7

Affected versions

1:6.*

1:6.9p1-2

1:6.9p1-3

1:7.*

1:7.1p1-1

1:7.1p1-3

1:7.1p1-4

1:7.1p1-6

1:7.1p2-1

1:7.1p2-2

1:7.2p1-1

1:7.2p2-1

1:7.2p2-2

1:7.2p2-3

1:7.2p2-4

1:7.2p2-4ubuntu1

1:7.2p2-4ubuntu2.1

1:7.2p2-4ubuntu2.2

1:7.2p2-4ubuntu2.4

1:7.2p2-4ubuntu2.5

1:7.2p2-4ubuntu2.6

1:7.2p2-4ubuntu2.7

1:7.2p2-4ubuntu2.8

1:7.2p2-4ubuntu2.10

1:7.2p2-4ubuntu2.10+esm1

1:7.2p2-4ubuntu2.10+esm2

1:7.2p2-4ubuntu2.10+esm3

1:7.2p2-4ubuntu2.10+esm4

1:7.2p2-4ubuntu2.10+esm5

1:7.2p2-4ubuntu2.10+esm6

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-client-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-client-ssh1"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-client-ssh1-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-client-udeb"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-client-udeb-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-server-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-server-udeb"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-server-udeb-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "openssh-sftp-server-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "ssh-askpass-gnome"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "ssh-askpass-gnome-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7",
            "binary_name": "ssh-krb5"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / openssh

Package

Name: openssh
Purl: pkg:deb/ubuntu/openssh@1:7.6p1-4ubuntu0.7+esm4?arch=source&distro=esm-infra/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:7.6p1-4ubuntu0.7+esm4

Affected versions

1:7.*

1:7.5p1-10

1:7.6p1-4

1:7.6p1-4ubuntu0.1

1:7.6p1-4ubuntu0.2

1:7.6p1-4ubuntu0.3

1:7.6p1-4ubuntu0.5

1:7.6p1-4ubuntu0.6

1:7.6p1-4ubuntu0.7

1:7.6p1-4ubuntu0.7+esm1

1:7.6p1-4ubuntu0.7+esm2

1:7.6p1-4ubuntu0.7+esm3

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-client-dbgsym"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-client-udeb"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-server-dbgsym"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-server-udeb"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-sftp-server-dbgsym"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "ssh-askpass-gnome"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "ssh-askpass-gnome-dbgsym"
        }
    ]
}