UBUNTU-CVE-2023-51767

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Source
https://ubuntu.com/security/CVE-2023-51767
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-51767.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2023-51767
Upstream
Withdrawn
2025-09-23T04:57:57Z
Published
2023-12-24T07:15:00Z
Modified
2025-09-08T16:56:37Z
Severity
  • 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

OpenSSH through 9.6, when common types of DRAM are used, might allow row hammer attacks (for authentication bypass) because the integer value of authenticated in mmanswerauthpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim co-location in which the attacker has user privileges.

References

Affected packages

Ubuntu:22.04:LTS

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:8.9p1-3ubuntu0.13?arch=source&distro=jammy

Affected ranges

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

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
1:8.9p1-3ubuntu0.10
1:8.9p1-3ubuntu0.11
1:8.9p1-3ubuntu0.13

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:8.9p1-3ubuntu0.13",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:8.9p1-3ubuntu0.13",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:8.9p1-3ubuntu0.13",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:8.9p1-3ubuntu0.13",
            "binary_name": "openssh-tests"
        },
        {
            "binary_version": "1:8.9p1-3ubuntu0.13",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:8.9p1-3ubuntu0.13",
            "binary_name": "ssh-askpass-gnome"
        }
    ]
}

openssh-ssh1

Package

Name
openssh-ssh1
Purl
pkg:deb/ubuntu/openssh-ssh1@1:7.5p1-13?arch=source&distro=jammy

Affected ranges

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

Affected versions

1:7.*

1:7.5p1-12
1:7.5p1-12build1
1:7.5p1-13

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:7.5p1-13",
            "binary_name": "openssh-client-ssh1"
        }
    ]
}

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_version": "1:6.6p1-2ubuntu2.13+esm2",
            "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"
        }
    ]
}

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_version": "1:7.2p2-4ubuntu2.10+esm7",
            "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"
        }
    ]
}

Ubuntu:Pro:18.04:LTS

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:7.6p1-4ubuntu0.7+esm4?arch=source&distro=esm-infra/bionic

Affected ranges

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

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
1:7.6p1-4ubuntu0.7+esm3
1:7.6p1-4ubuntu0.7+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.6p1-4ubuntu0.7+esm4",
            "binary_name": "ssh-askpass-gnome"
        }
    ]
}

openssh-ssh1

Package

Name
openssh-ssh1
Purl
pkg:deb/ubuntu/openssh-ssh1@1:7.5p1-10?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1:7.*

1:7.5p1-8
1:7.5p1-9
1:7.5p1-9build1
1:7.5p1-10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:7.5p1-10",
            "binary_name": "openssh-client-ssh1"
        }
    ]
}

Ubuntu:Pro:20.04:LTS

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:8.2p1-4ubuntu0.13?arch=source&distro=esm-infra/focal

Affected ranges

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

Affected versions

1:8.*

1:8.0p1-6build1
1:8.1p1-1
1:8.1p1-5
1:8.2p1-4
1:8.2p1-4ubuntu0.1
1:8.2p1-4ubuntu0.2
1:8.2p1-4ubuntu0.3
1:8.2p1-4ubuntu0.4
1:8.2p1-4ubuntu0.5
1:8.2p1-4ubuntu0.7
1:8.2p1-4ubuntu0.8
1:8.2p1-4ubuntu0.9
1:8.2p1-4ubuntu0.10
1:8.2p1-4ubuntu0.11
1:8.2p1-4ubuntu0.12
1:8.2p1-4ubuntu0.13

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:8.2p1-4ubuntu0.13",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.13",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.13",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.13",
            "binary_name": "openssh-tests"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.13",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.13",
            "binary_name": "ssh-askpass-gnome"
        }
    ]
}

openssh-ssh1

Package

Name
openssh-ssh1
Purl
pkg:deb/ubuntu/openssh-ssh1@1:7.5p1-11build1?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

1:7.*

1:7.5p1-11build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:7.5p1-11build1",
            "binary_name": "openssh-client-ssh1"
        }
    ]
}

Ubuntu:Pro:FIPS-updates:18.04:LTS

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:7.9p1-10~ubuntu18.04.fips.0.10?arch=source&distro=fips-updates/bionic

Affected ranges

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

Affected versions

1:7.*

1:7.9p1-10~ubuntu18.04.fips.0.1
1:7.9p1-10~ubuntu18.04.fips.0.2
1:7.9p1-10~ubuntu18.04.fips.0.3
1:7.9p1-10~ubuntu18.04.fips.0.4
1:7.9p1-10~ubuntu18.04.fips.0.5
1:7.9p1-10~ubuntu18.04.fips.0.6
1:7.9p1-10~ubuntu18.04.fips.0.7
1:7.9p1-10~ubuntu18.04.fips.0.8
1:7.9p1-10~ubuntu18.04.fips.0.9
1:7.9p1-10~ubuntu18.04.fips.0.10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "binary_name": "openssh-client-hmac"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "binary_name": "openssh-server-hmac"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "binary_name": "openssh-tests"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "binary_name": "ssh-askpass-gnome"
        }
    ]
}

Ubuntu:Pro:FIPS-updates:20.04:LTS

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:8.2p1-4ubuntu0.fips.0.13?arch=source&distro=fips-updates/focal

Affected ranges

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

Affected versions

1:8.*

1:8.2p1-4ubuntu0.fips.0.2.1
1:8.2p1-4ubuntu0.fips.0.4.0
1:8.2p1-4ubuntu0.fips.0.5.0
1:8.2p1-4ubuntu0.fips.0.7
1:8.2p1-4ubuntu0.fips.0.8
1:8.2p1-4ubuntu0.fips.0.9
1:8.2p1-4ubuntu0.fips.0.10
1:8.2p1-4ubuntu0.fips.0.11
1:8.2p1-4ubuntu0.fips.0.12
1:8.2p1-4ubuntu0.fips.0.13

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.13",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.13",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.13",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.13",
            "binary_name": "openssh-tests"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.13",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.13",
            "binary_name": "ssh-askpass-gnome"
        }
    ]
}

Ubuntu:Pro:FIPS:16.04:LTS

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:7.2p2-4ubuntu2.fips.2.10.7?arch=source&distro=fips-updates/xenial

Affected ranges

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

Affected versions

1:7.*

1:7.2p2-4ubuntu2.fips.2.2.3
1:7.2p2-4ubuntu2.fips.2.4.1
1:7.2p2-4ubuntu2.fips.2.4.2
1:7.2p2-4ubuntu2.fips.2.8.1
1:7.2p2-4ubuntu2.fips.2.10.1
1:7.2p2-4ubuntu2.fips.2.10.2
1:7.2p2-4ubuntu2.fips.2.10.3
1:7.2p2-4ubuntu2.fips.2.10.4
1:7.2p2-4ubuntu2.fips.2.10.5
1:7.2p2-4ubuntu2.fips.2.10.6
1:7.2p2-4ubuntu2.fips.2.10.7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "openssh-client-hmac"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "openssh-client-ssh1"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "openssh-server-hmac"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "ssh-askpass-gnome"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.7",
            "binary_name": "ssh-krb5"
        }
    ]
}

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:7.2p2-4ubuntu2.fips.2.10.1?arch=source&distro=fips/xenial

Affected ranges

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

Affected versions

1:7.*

1:7.2p2-4ubuntu2.fips.2.2
1:7.2p2-4ubuntu2.fips.2.2.1
1:7.2p2-4ubuntu2.fips.2.10.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "openssh-client-hmac"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "openssh-client-ssh1"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "openssh-server-hmac"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "ssh-askpass-gnome"
        },
        {
            "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "binary_name": "ssh-krb5"
        }
    ]
}

Ubuntu:Pro:FIPS:18.04:LTS

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:7.9p1-10~ubuntu18.04.fips.0.2?arch=source&distro=fips/bionic

Affected ranges

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

Affected versions

1:7.*

1:7.9p1-10~ubuntu18.04.fips.0.1
1:7.9p1-10~ubuntu18.04.fips.0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "binary_name": "openssh-client-hmac"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "binary_name": "openssh-server-hmac"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "binary_name": "openssh-tests"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "binary_name": "ssh-askpass-gnome"
        }
    ]
}

Ubuntu:Pro:FIPS:20.04:LTS

openssh

Package

Name
openssh
Purl
pkg:deb/ubuntu/openssh@1:8.2p1-4ubuntu0.fips.0.2.1?arch=source&distro=fips/focal

Affected ranges

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

Affected versions

1:8.*

1:8.2p1-4ubuntu0.fips.0.2.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "binary_name": "openssh-client"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "binary_name": "openssh-server"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "binary_name": "openssh-sftp-server"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "binary_name": "openssh-tests"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "binary_name": "ssh"
        },
        {
            "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "binary_name": "ssh-askpass-gnome"
        }
    ]
}