UBUNTU-CVE-2023-42822

    Dashboard / Vulnerabilities / UBUNTU-CVE-2023-42822

    UBUNTU-CVE-2023-42822

    Published: 27 Sept 2023Last Modified: 25 Jun 2026
    Upstream:
    CVE-2023-42822

    Summary:

    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: https://ubuntu.com/security/CVE-2023-42822, https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-2hjx-rm4f-r9hw, https://ubuntu.com/security/notices/USN-6474-1, https://www.cve.org/CVERecord?id=CVE-2023-42822, https://ubuntu.com/security/notices/USN-8476-1

    Affected packages

    Package

    Name: xrdp

    Purl: pkg:deb/ubuntu/xrdp?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.6.0-1ubuntu0.1+esm3

    Affected versions

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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2023-42822 | CVE-DB