UBUNTU-CVE-2023-42822

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Source
https://ubuntu.com/security/CVE-2023-42822
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-42822.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-42822
Upstream
Downstream
Related
Published
2023-09-27T18:15:00Z
Modified
2025-10-24T05:02:16Z
Severity
  • 4.6 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N CVSS Calculator
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

xrdp is an open source remote desktop protocol server. Access to the font glyphs in xrdp_painter.c is not bounds-checked . Since some of this data is controllable by the user, this can result in an out-of-bounds read within the xrdp executable. The vulnerability allows an out-of-bounds read within a potentially privileged process. On non-Debian platforms, xrdp tends to run as root. Potentially an out-of-bounds write can follow the out-of-bounds read. There is no denial-of-service impact, providing xrdp is running in forking mode. This issue has been addressed in release 0.9.23.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

References

Affected packages

Ubuntu:24.04:LTS

xrdp

Package

Name
xrdp
Purl
pkg:deb/ubuntu/xrdp@0.9.24-4?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*

0.9.21.1-1
0.9.24-2
0.9.24-3
0.9.24-3build1
0.9.24-3build2
0.9.24-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "xrdp",
            "binary_version": "0.9.24-4"
        }
    ]
}

Ubuntu:Pro:14.04:LTS

xrdp

Package

Name
xrdp
Purl
pkg:deb/ubuntu/xrdp@0.6.0-1ubuntu0.1+esm3?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.0-1ubuntu0.1+esm3

Affected versions

0.*

0.6.0-1
0.6.0-1ubuntu0.1
0.6.0-1ubuntu0.1+esm1
0.6.0-1ubuntu0.1+esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "xrdp",
            "binary_version": "0.6.0-1ubuntu0.1+esm3"
        }
    ]
}

Ubuntu:Pro:16.04:LTS

xrdp

Package

Name
xrdp
Purl
pkg:deb/ubuntu/xrdp@0.6.1-2ubuntu0.3+esm3?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.1-2ubuntu0.3+esm3

Affected versions

0.*

0.6.1-2
0.6.1-2ubuntu0.1
0.6.1-2ubuntu0.3
0.6.1-2ubuntu0.3+esm1
0.6.1-2ubuntu0.3+esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "xrdp",
            "binary_version": "0.6.1-2ubuntu0.3+esm3"
        }
    ]
}

Ubuntu:Pro:18.04:LTS

xrdp

Package

Name
xrdp
Purl
pkg:deb/ubuntu/xrdp@0.9.5-2ubuntu0.1~esm2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.5-2ubuntu0.1~esm2

Affected versions

0.*

0.9.1-9
0.9.4-1
0.9.4-2
0.9.4-3
0.9.4-4
0.9.4-5
0.9.5-1
0.9.5-1build1
0.9.5-2
0.9.5-2ubuntu0.1~esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "xorgxrdp",
            "binary_version": "0.9.5-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "xrdp",
            "binary_version": "0.9.5-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "xrdp-pulseaudio-installer",
            "binary_version": "0.9.5-2ubuntu0.1~esm2"
        }
    ]
}

Ubuntu:Pro:20.04:LTS

xrdp

Package

Name
xrdp
Purl
pkg:deb/ubuntu/xrdp@0.9.12-1ubuntu0.1+esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.12-1ubuntu0.1+esm1

Affected versions

0.*

0.9.9-1
0.9.12-1
0.9.12-1ubuntu0.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "xrdp",
            "binary_version": "0.9.12-1ubuntu0.1+esm1"
        }
    ]
}

Ubuntu:Pro:22.04:LTS

xrdp

Package

Name
xrdp
Purl
pkg:deb/ubuntu/xrdp@0.9.17-2ubuntu2+esm1?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.17-2ubuntu2+esm1

Affected versions

0.*

0.9.15-1ubuntu1
0.9.17-1
0.9.17-2
0.9.17-2ubuntu1
0.9.17-2ubuntu2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "xrdp",
            "binary_version": "0.9.17-2ubuntu2+esm1"
        }
    ]
}