UBUNTU-CVE-2023-6816

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Source
https://ubuntu.com/security/CVE-2023-6816
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-6816.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-6816
Upstream
Downstream
Related
Published
2024-01-16T00:00:00Z
Modified
2025-09-08T16:56:01Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.

References

Affected packages

Ubuntu:20.04:LTS

xorg-server

Package

Name
xorg-server
Purl
pkg:deb/ubuntu/xorg-server@2:1.20.13-1ubuntu1~20.04.14?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.20.13-1ubuntu1~20.04.14

Affected versions

2:1.*

2:1.20.5+git20191008-0ubuntu1
2:1.20.6-1ubuntu1
2:1.20.7-2ubuntu1
2:1.20.7-2ubuntu2
2:1.20.8-2ubuntu2
2:1.20.8-2ubuntu2.1
2:1.20.8-2ubuntu2.2
2:1.20.8-2ubuntu2.3
2:1.20.8-2ubuntu2.4
2:1.20.8-2ubuntu2.6
2:1.20.9-2ubuntu1.1~20.04.1
2:1.20.9-2ubuntu1.2~20.04.1
2:1.20.9-2ubuntu1.2~20.04.2
2:1.20.11-1ubuntu1~20.04.2
2:1.20.13-1ubuntu1~20.04.2
2:1.20.13-1ubuntu1~20.04.3
2:1.20.13-1ubuntu1~20.04.4
2:1.20.13-1ubuntu1~20.04.5
2:1.20.13-1ubuntu1~20.04.6
2:1.20.13-1ubuntu1~20.04.8
2:1.20.13-1ubuntu1~20.04.9
2:1.20.13-1ubuntu1~20.04.12

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xdmx",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xdmx-tools",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xnest",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xorg-server-source",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xserver-common",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xserver-xorg-dev",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xserver-xorg-legacy",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xvfb",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        },
        {
            "binary_name": "xwayland",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.14"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:22.04:LTS

xorg-server

Package

Name
xorg-server
Purl
pkg:deb/ubuntu/xorg-server@2:21.1.4-2ubuntu1.7~22.04.7?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:21.1.4-2ubuntu1.7~22.04.7

Affected versions

2:1.*

2:1.20.13-1ubuntu1
2:1.20.13-1ubuntu2
2:1.20.14-1ubuntu1

2:21.*

2:21.1.3-2ubuntu2
2:21.1.3-2ubuntu2.1
2:21.1.3-2ubuntu2.2
2:21.1.3-2ubuntu2.3
2:21.1.3-2ubuntu2.4
2:21.1.3-2ubuntu2.5
2:21.1.3-2ubuntu2.6
2:21.1.3-2ubuntu2.7
2:21.1.3-2ubuntu2.8
2:21.1.3-2ubuntu2.9
2:21.1.4-2ubuntu1.7~22.04.1
2:21.1.4-2ubuntu1.7~22.04.2
2:21.1.4-2ubuntu1.7~22.04.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xnest",
            "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
        },
        {
            "binary_name": "xorg-server-source",
            "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
        },
        {
            "binary_name": "xserver-common",
            "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
        },
        {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
        },
        {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
        },
        {
            "binary_name": "xserver-xorg-dev",
            "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
        },
        {
            "binary_name": "xserver-xorg-legacy",
            "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
        },
        {
            "binary_name": "xvfb",
            "binary_version": "2:21.1.4-2ubuntu1.7~22.04.7"
        }
    ],
    "availability": "No subscription required"
}

xwayland

Package

Name
xwayland
Purl
pkg:deb/ubuntu/xwayland@2:22.1.1-1ubuntu0.10?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:22.1.1-1ubuntu0.10

Affected versions

2:21.*

2:21.1.2-0ubuntu1
2:21.1.3-1
2:21.1.3-1ubuntu1
2:21.1.4-1

2:22.*

2:22.1.0-1
2:22.1.1-1
2:22.1.1-1ubuntu0.1
2:22.1.1-1ubuntu0.2
2:22.1.1-1ubuntu0.3
2:22.1.1-1ubuntu0.4
2:22.1.1-1ubuntu0.5
2:22.1.1-1ubuntu0.6
2:22.1.1-1ubuntu0.7
2:22.1.1-1ubuntu0.9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xwayland",
            "binary_version": "2:22.1.1-1ubuntu0.10"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:24.04:LTS

xwayland

Package

Name
xwayland
Purl
pkg:deb/ubuntu/xwayland@2:23.2.4-1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:23.2.4-1

Affected versions

2:23.*

2:23.2.0-1
2:23.2.0-1ubuntu0.1
2:23.2.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xwayland",
            "binary_version": "2:23.2.4-1"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:14.04:LTS

xorg-server

Package

Name
xorg-server
Purl
pkg:deb/ubuntu/xorg-server@2:1.15.1-0ubuntu2.11+esm9?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.15.1-0ubuntu2.11+esm9

Affected versions

2:1.*

2:1.14.3-3ubuntu2
2:1.14.3-3ubuntu3
2:1.14.3-3ubuntu4
2:1.14.3-5ubuntu1
2:1.14.4-1ubuntu1
2:1.14.4-1ubuntu2
2:1.14.4.901-0ubuntu2
2:1.14.5-1ubuntu2
2:1.14.5-1ubuntu4
2:1.15.0-1ubuntu1
2:1.15.0-1ubuntu2
2:1.15.0-1ubuntu3
2:1.15.0-1ubuntu4
2:1.15.0-1ubuntu6
2:1.15.0-1ubuntu7
2:1.15.1-0ubuntu1
2:1.15.1-0ubuntu2
2:1.15.1-0ubuntu2.1
2:1.15.1-0ubuntu2.4
2:1.15.1-0ubuntu2.5
2:1.15.1-0ubuntu2.6
2:1.15.1-0ubuntu2.7
2:1.15.1-0ubuntu2.9
2:1.15.1-0ubuntu2.10
2:1.15.1-0ubuntu2.11
2:1.15.1-0ubuntu2.11+esm2
2:1.15.1-0ubuntu2.11+esm3
2:1.15.1-0ubuntu2.11+esm4
2:1.15.1-0ubuntu2.11+esm5
2:1.15.1-0ubuntu2.11+esm6
2:1.15.1-0ubuntu2.11+esm7
2:1.15.1-0ubuntu2.11+esm8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xdmx",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xdmx-tools",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xnest",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xorg-server-source",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xserver-common",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xserver-xorg-dev",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xserver-xorg-xmir",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        },
        {
            "binary_name": "xvfb",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm9"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:Pro:16.04:LTS

xorg-server

Package

Name
xorg-server
Purl
pkg:deb/ubuntu/xorg-server@2:1.18.4-0ubuntu0.12+esm9?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.18.4-0ubuntu0.12+esm9

Affected versions

2:1.*

2:1.17.2-1ubuntu9
2:1.17.2-1ubuntu10
2:1.17.3-2ubuntu1
2:1.17.3-2ubuntu2
2:1.17.3-2ubuntu3
2:1.17.3-2ubuntu4
2:1.18.1-1ubuntu3
2:1.18.1-1ubuntu4
2:1.18.3-1ubuntu1
2:1.18.3-1ubuntu2
2:1.18.3-1ubuntu2.2
2:1.18.3-1ubuntu2.3
2:1.18.4-0ubuntu0.1
2:1.18.4-0ubuntu0.2
2:1.18.4-0ubuntu0.3
2:1.18.4-0ubuntu0.4
2:1.18.4-0ubuntu0.6
2:1.18.4-0ubuntu0.7
2:1.18.4-0ubuntu0.8
2:1.18.4-0ubuntu0.9
2:1.18.4-0ubuntu0.10
2:1.18.4-0ubuntu0.11
2:1.18.4-0ubuntu0.12
2:1.18.4-0ubuntu0.12+esm1
2:1.18.4-0ubuntu0.12+esm2
2:1.18.4-0ubuntu0.12+esm4
2:1.18.4-0ubuntu0.12+esm5
2:1.18.4-0ubuntu0.12+esm6
2:1.18.4-0ubuntu0.12+esm8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xdmx",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xdmx-tools",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xmir",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xnest",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xorg-server-source",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xserver-common",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xserver-xorg-dev",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xserver-xorg-legacy",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xserver-xorg-xmir",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xvfb",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        },
        {
            "binary_name": "xwayland",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm9"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

xorg-server-hwe-16.04

Package

Name
xorg-server-hwe-16.04
Purl
pkg:deb/ubuntu/xorg-server-hwe-16.04@2:1.19.6-1ubuntu4.1~16.04.6+esm10?arch=source&distro=esm-infra/xenial

Affected ranges

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

Affected versions

2:1.*

2:1.18.4-1ubuntu6.1~16.04.1
2:1.18.4-1ubuntu6.1~16.04.2
2:1.19.3-1ubuntu1~16.04.2
2:1.19.3-1ubuntu1~16.04.3
2:1.19.3-1ubuntu1~16.04.4
2:1.19.5-0ubuntu2~16.04.1
2:1.19.6-1ubuntu4~16.04.1
2:1.19.6-1ubuntu4.1~16.04.1
2:1.19.6-1ubuntu4.1~16.04.2
2:1.19.6-1ubuntu4.1~16.04.3
2:1.19.6-1ubuntu4.1~16.04.4
2:1.19.6-1ubuntu4.1~16.04.5
2:1.19.6-1ubuntu4.1~16.04.6
2:1.19.6-1ubuntu4.1~16.04.6+esm1
2:1.19.6-1ubuntu4.1~16.04.6+esm3
2:1.19.6-1ubuntu4.1~16.04.6+esm4
2:1.19.6-1ubuntu4.1~16.04.6+esm5
2:1.19.6-1ubuntu4.1~16.04.6+esm6
2:1.19.6-1ubuntu4.1~16.04.6+esm7
2:1.19.6-1ubuntu4.1~16.04.6+esm8
2:1.19.6-1ubuntu4.1~16.04.6+esm9
2:1.19.6-1ubuntu4.1~16.04.6+esm10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xmir-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10"
        },
        {
            "binary_name": "xorg-server-source-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10"
        },
        {
            "binary_name": "xserver-xephyr-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10"
        },
        {
            "binary_name": "xserver-xorg-core-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10"
        },
        {
            "binary_name": "xserver-xorg-dev-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10"
        },
        {
            "binary_name": "xserver-xorg-legacy-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10"
        },
        {
            "binary_name": "xwayland-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm10"
        }
    ]
}

Ubuntu:Pro:18.04:LTS

xorg-server

Package

Name
xorg-server
Purl
pkg:deb/ubuntu/xorg-server@2:1.19.6-1ubuntu4.15+esm4?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.19.6-1ubuntu4.15+esm4

Affected versions

2:1.*

2:1.19.5-0ubuntu2
2:1.19.6-1ubuntu1
2:1.19.6-1ubuntu2
2:1.19.6-1ubuntu3
2:1.19.6-1ubuntu4
2:1.19.6-1ubuntu4.1
2:1.19.6-1ubuntu4.2
2:1.19.6-1ubuntu4.3
2:1.19.6-1ubuntu4.4
2:1.19.6-1ubuntu4.5
2:1.19.6-1ubuntu4.6
2:1.19.6-1ubuntu4.7
2:1.19.6-1ubuntu4.8
2:1.19.6-1ubuntu4.9
2:1.19.6-1ubuntu4.10
2:1.19.6-1ubuntu4.11
2:1.19.6-1ubuntu4.12
2:1.19.6-1ubuntu4.13
2:1.19.6-1ubuntu4.14
2:1.19.6-1ubuntu4.15
2:1.19.6-1ubuntu4.15+esm1
2:1.19.6-1ubuntu4.15+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xdmx",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xdmx-tools",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xmir",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xnest",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xorg-server-source",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xserver-common",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xserver-xorg-dev",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xserver-xorg-legacy",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xserver-xorg-xmir",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xvfb",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        },
        {
            "binary_name": "xwayland",
            "binary_version": "2:1.19.6-1ubuntu4.15+esm4"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

xorg-server-hwe-18.04

Package

Name
xorg-server-hwe-18.04
Purl
pkg:deb/ubuntu/xorg-server-hwe-18.04@2:1.20.8-2ubuntu2.2~18.04.11+esm5?arch=source&distro=esm-infra/bionic

Affected ranges

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

Affected versions

2:1.*

2:1.20.1-3ubuntu2.1~18.04.1
2:1.20.4-1ubuntu3~18.04.1
2:1.20.5+git20191008-0ubuntu1~18.04.1
2:1.20.8-2ubuntu2.1~18.04.1
2:1.20.8-2ubuntu2.2~18.04.1
2:1.20.8-2ubuntu2.2~18.04.2
2:1.20.8-2ubuntu2.2~18.04.3
2:1.20.8-2ubuntu2.2~18.04.4
2:1.20.8-2ubuntu2.2~18.04.5
2:1.20.8-2ubuntu2.2~18.04.6
2:1.20.8-2ubuntu2.2~18.04.7
2:1.20.8-2ubuntu2.2~18.04.8
2:1.20.8-2ubuntu2.2~18.04.9
2:1.20.8-2ubuntu2.2~18.04.10
2:1.20.8-2ubuntu2.2~18.04.11
2:1.20.8-2ubuntu2.2~18.04.11+esm1
2:1.20.8-2ubuntu2.2~18.04.11+esm2
2:1.20.8-2ubuntu2.2~18.04.11+esm3
2:1.20.8-2ubuntu2.2~18.04.11+esm4
2:1.20.8-2ubuntu2.2~18.04.11+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xorg-server-source-hwe-18.04",
            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
        },
        {
            "binary_name": "xserver-xephyr-hwe-18.04",
            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
        },
        {
            "binary_name": "xserver-xorg-core-hwe-18.04",
            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
        },
        {
            "binary_name": "xserver-xorg-dev-hwe-18.04",
            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
        },
        {
            "binary_name": "xserver-xorg-legacy-hwe-18.04",
            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
        },
        {
            "binary_name": "xwayland-hwe-18.04",
            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
        }
    ]
}