UBUNTU-CVE-2015-5600

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Source

https://ubuntu.com/security/CVE-2015-5600

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-5600.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2015-5600

Related

Published

2015-08-02T00:00:00Z

Modified

2015-08-02T00:00:00Z

Summary

[none]

Details

The kbdintnextdevice function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumption) via a long and duplicative list in the ssh -oKbdInteractiveDevices option, as demonstrated by a modified client that provides a different password for each pam element on this list.

References

Affected packages

Ubuntu:14.04:LTS / openssh

Package

Name: openssh
Purl: pkg:deb/ubuntu/openssh?arch=src?distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:6.6p1-2ubuntu2.2

Affected versions

1:6.*

1:6.2p2-6

1:6.2p2-6ubuntu1

1:6.4p1-1

1:6.4p1-2

1:6.5p1-1

1:6.5p1-2

1:6.5p1-3

1:6.5p1-4

1:6.5p1-6

1:6.6p1-1

1:6.6p1-2

1:6.6p1-2ubuntu1

1:6.6p1-2ubuntu2

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "low",
    "binaries": [
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-client-dbgsym"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-client-udeb"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-client-udeb-dbgsym"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-server-dbgsym"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-server-udeb"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-server-udeb-dbgsym"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "openssh-sftp-server-dbgsym"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "ssh-askpass-gnome"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "ssh-askpass-gnome-dbgsym"
        },
        {
            "binary_version": "1:6.6p1-2ubuntu2.2",
            "binary_name": "ssh-krb5"
        }
    ]
}