USN-6560-2

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Source

https://ubuntu.com/security/notices/USN-6560-2

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6560-2.json

JSON Data

https://api.osv.dev/v1/vulns/USN-6560-2

Related

Published

2024-01-11T16:53:56.906191Z

Modified

2024-01-11T16:53:56.906191Z

Summary

openssh vulnerabilities

Details

USN-6560-1 fixed several vulnerabilities in OpenSSH. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being downgraded. This issue is known as the Terrapin attack. This update adds protocol extensions to mitigate this issue. (CVE-2023-48795)

It was discovered that OpenSSH incorrectly handled user names or host names with shell metacharacters. An attacker could possibly use this issue to perform OS command injection. This only affected Ubuntu 18.04 LTS. (CVE-2023-51385)

References

Affected packages

Ubuntu:Pro:16.04:LTS / openssh

Package

Name: openssh
Purl: pkg:deb/ubuntu/openssh?arch=src?distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:7.2p2-4ubuntu2.10+esm5

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

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-client-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-client-ssh1"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-client-ssh1-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-client-udeb"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-client-udeb-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-server-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-server-udeb"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-server-udeb-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "openssh-sftp-server-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "ssh-askpass-gnome"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "ssh-askpass-gnome-dbgsym"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.10+esm5",
            "binary_name": "ssh-krb5"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / openssh

Package

Name: openssh
Purl: pkg:deb/ubuntu/openssh?arch=src?distro=esm-infra/bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:7.6p1-4ubuntu0.7+esm3

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

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "openssh-client-dbgsym"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "openssh-client-udeb"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "openssh-server-dbgsym"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "openssh-server-udeb"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "openssh-sftp-server-dbgsym"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "ssh-askpass-gnome"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm3",
            "binary_name": "ssh-askpass-gnome-dbgsym"
        }
    ]
}