UBUNTU-CVE-2016-8858

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Source
https://ubuntu.com/security/CVE-2016-8858
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-8858.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2016-8858
Upstream
Published
2016-12-09T11:59:00Z
Modified
2025-09-08T16:43:55Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - negligible
Summary
[none]
Details

The kexinputkexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."

References

Affected packages

Ubuntu:Pro:14.04:LTS / openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:6.6p1-2ubuntu2.13+esm2?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
1:6.6p1-2ubuntu2.2
1:6.6p1-2ubuntu2.3
1:6.6p1-2ubuntu2.4
1:6.6p1-2ubuntu2.6
1:6.6p1-2ubuntu2.7
1:6.6p1-2ubuntu2.8
1:6.6p1-2ubuntu2.10
1:6.6p1-2ubuntu2.11
1:6.6p1-2ubuntu2.12
1:6.6p1-2ubuntu2.13
1:6.6p1-2ubuntu2.13+esm1
1:6.6p1-2ubuntu2.13+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openssh-client",
            "binary_version": "1:6.6p1-2ubuntu2.13+esm2"
        },
        {
            "binary_name": "openssh-server",
            "binary_version": "1:6.6p1-2ubuntu2.13+esm2"
        },
        {
            "binary_name": "openssh-sftp-server",
            "binary_version": "1:6.6p1-2ubuntu2.13+esm2"
        },
        {
            "binary_name": "ssh",
            "binary_version": "1:6.6p1-2ubuntu2.13+esm2"
        },
        {
            "binary_name": "ssh-askpass-gnome",
            "binary_version": "1:6.6p1-2ubuntu2.13+esm2"
        },
        {
            "binary_name": "ssh-krb5",
            "binary_version": "1:6.6p1-2ubuntu2.13+esm2"
        }
    ]
}

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

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
1:7.2p2-4ubuntu2.10+esm7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openssh-client",
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7"
        },
        {
            "binary_name": "openssh-client-ssh1",
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7"
        },
        {
            "binary_name": "openssh-server",
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7"
        },
        {
            "binary_name": "openssh-sftp-server",
            "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-krb5",
            "binary_version": "1:7.2p2-4ubuntu2.10+esm7"
        }
    ]
}