USN-6887-1

Philippos Giavridis, Jacky Wei En Kung, Daniel Hugenroth, and Alastair Beresford discovered that the OpenSSH ObscureKeystrokeTiming feature did not work as expected. A remote attacker could possibly use this issue to determine timing information about keystrokes.

References

Affected packages

Ubuntu:24.04:LTS / openssh

Package

Name: openssh
Purl: pkg:deb/ubuntu/openssh@1:9.6p1-3ubuntu13.4?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:9.6p1-3ubuntu13.4

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

1:9.6p1-3ubuntu13.3

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "openssh-client",
            "binary_version": "1:9.6p1-3ubuntu13.4"
        },
        {
            "binary_name": "openssh-server",
            "binary_version": "1:9.6p1-3ubuntu13.4"
        },
        {
            "binary_name": "openssh-sftp-server",
            "binary_version": "1:9.6p1-3ubuntu13.4"
        },
        {
            "binary_name": "openssh-tests",
            "binary_version": "1:9.6p1-3ubuntu13.4"
        },
        {
            "binary_name": "ssh",
            "binary_version": "1:9.6p1-3ubuntu13.4"
        },
        {
            "binary_name": "ssh-askpass-gnome",
            "binary_version": "1:9.6p1-3ubuntu13.4"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:24.04:LTS",
    "cves": [
        {
            "id": "CVE-2024-39894",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}