USN-6859-1

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Source
https://ubuntu.com/security/notices/USN-6859-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6859-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-6859-1
Upstream
Related
Published
2024-07-01T09:06:31.434165Z
Modified
2025-07-16T08:36:16.246632Z
Summary
openssh vulnerability
Details

It was discovered that OpenSSH incorrectly handled signal management. A remote attacker could use this issue to bypass authentication and remotely access systems without proper credentials.

References

Affected packages

Ubuntu:22.04:LTS / openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:8.9p1-3ubuntu0.10?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:8.9p1-3ubuntu0.10

Affected versions

1:8.*

1:8.4p1-6ubuntu2
1:8.7p1-2
1:8.7p1-2build1
1:8.7p1-4
1:8.8p1-1
1:8.9p1-3
1:8.9p1-3ubuntu0.1
1:8.9p1-3ubuntu0.3
1:8.9p1-3ubuntu0.4
1:8.9p1-3ubuntu0.5
1:8.9p1-3ubuntu0.6
1:8.9p1-3ubuntu0.7

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "openssh-client",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "openssh-client-dbgsym",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "openssh-server",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "openssh-server-dbgsym",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "openssh-sftp-server",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "openssh-sftp-server-dbgsym",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "openssh-tests",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "openssh-tests-dbgsym",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "ssh",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "ssh-askpass-gnome",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        },
        {
            "binary_name": "ssh-askpass-gnome-dbgsym",
            "binary_version": "1:8.9p1-3ubuntu0.10"
        }
    ]
}

Ubuntu:24.04:LTS / openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:9.6p1-3ubuntu13.3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.6p1-3ubuntu13.3

Affected versions

1:9.*

1:9.3p1-1ubuntu3
1:9.4p1-1ubuntu1
1:9.6p1-3ubuntu1
1:9.6p1-3ubuntu2
1:9.6p1-3ubuntu11
1:9.6p1-3ubuntu12
1:9.6p1-3ubuntu13

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "openssh-client",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "openssh-client-dbgsym",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "openssh-server",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "openssh-server-dbgsym",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "openssh-sftp-server",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "openssh-sftp-server-dbgsym",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "openssh-tests",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "openssh-tests-dbgsym",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "ssh",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "ssh-askpass-gnome",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        },
        {
            "binary_name": "ssh-askpass-gnome-dbgsym",
            "binary_version": "1:9.6p1-3ubuntu13.3"
        }
    ]
}