The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM / 22.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6474-1 advisory.

    It was discovered that xrdp incorrectly handled validation of client-supplied data, which could lead to     out-of-bounds reads. An attacker could possibly use this issue to crash the program or extract sensitive     information. (CVE-2022-23479, CVE-2022-23481, CVE-2022-23483, CVE-2023-42822)

    It was discovered that xrdp improperly handled session establishment errors. An attacker could potentially     use this issue to bypass the OS-level session restrictions by PAM. (CVE-2023-40184)

    It was discovered that xrdp incorrectly handled validation of client-supplied data, which could lead to     out-of-bounds writes. An attacker could possibly use this issue to cause memory corruption or execute     arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.
    (CVE-2022-23468)

    It was discovered that xrdp incorrectly handled validation of client-supplied data, which could lead to     out-of-bounds reads. An attacker could possibly use this issue to crash the program or extract sensitive     information. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.
    (CVE-2022-23480, CVE-2022-23482, CVE-2022-23484)

    It was discovered that xrdp incorrectly handled validation of client-supplied data, which could lead to     out-of-bounds reads. An attacker could possibly use this issue to crash the program or extract sensitive     information. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-23477,     CVE-2022-23493)

    It was discovered that xrdp incorrectly handled validation of client-supplied data, which could lead to     out-of-bounds writes. An attacker could possibly use this issue to cause memory corruption or execute     arbitrary code. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-23478)

    It was discovered that xrdp incorrectly handled validation of client-supplied data, which could lead to     out-of-bounds reads. An attacker could possibly use this issue to crash the program or extract sensitive     information. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-23613)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM / 22.04 ESM : xrdp vulnerabilities (USN-6474-1)

critical Nessus Plugin ID 185416

Version 1.3

Version 1.2

Version 1.1

Version 1.1

Version 1.0

Version 1.0

Version 1.3 Aug 28, 2024, 7:43 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202408281943
Version 1.2 Dec 21, 2023, 2:29 PM CVSS metrics ("CVSSv2 score" set to 7.2. "CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C") CVSSv2 score source (changed from "CVE-2022-23484" to "CVE-2022-23613") CVSSv3 score source (set to "CVE-2022-23484") Plugin Feed: 202312211429
Version 1.1 Dec 20, 2023, 2:36 PM CVSS metrics ("CVSSv2 score" set to 10.0. "CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C") CVSSv2 score source (changed from "CVE-2022-23613" to "CVE-2022-23484") CVSSv3 score source (changed from "CVE-2022-23484" to none) Plugin Feed: 202312201436
Version 1.1 Dec 21, 2023, 12:32 PM CVSS metrics ("CVSSv2 score" set to 7.2) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C") CVSSv2 score source (changed from "CVE-2022-23484" to "CVE-2022-23613") CVSSv3 score source (set to "CVE-2022-23484") Plugin Feed: 202312211232
Version 1.0 Nov 9, 2023, 10:40 AM New Plugin Feed: 202311091040
Version 1.0 Dec 20, 2023, 12:39 PM CVSS metrics ("CVSSv2 score" set to 10.0) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C") CVSSv2 score source (changed from "CVE-2022-23613" to "CVE-2022-23484") CVSSv3 score source (changed from "CVE-2022-23484" to none) Plugin Feed: 202312201239