Debian dla-3654 : freerdp2-dev - security update

critical Nessus Plugin ID 185962

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3654 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3654-1 [email protected] https://www.debian.org/lts/security/ Tobias Frost November 17, 2023 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : freerdp2 Version : 2.3.0+dfsg1-2+deb10u4 CVE ID : CVE-2021-41160 CVE-2022-24883 CVE-2022-39282 CVE-2022-39283 CVE-2022-39316 CVE-2022-39318 CVE-2022-39319 CVE-2022-39347 CVE-2022-41877

Debian Bug : 1001062 1021659

Multiple vulnerabilties have been found in freelrdp2, a free implementation of the Remote Desktop Protocol (RDP). The vulnerabilties potentially allows authentication bypasses on configuration errors, buffer overreads, DoS vectors, buffer overflows or accessing files outside of a shared directory.

CVE-2021-41160

In affected versions a malicious server might trigger out of bound writes in a connected client. Connections using GDI or SurfaceCommands to send graphics updates to the client might send `0` width/height or out of bound rectangles to trigger out of bound writes. With `0` width or heigth the memory allocation will be `0` but the missing bounds checks allow writing to the pointer at this (not allocated) region.

CVE-2022-24883

Prior to version 2.7.0, server side authentication against a `SAM` file might be successful for invalid credentials if the server has configured an invalid `SAM` file path. FreeRDP based clients are not affected. RDP server implementations using FreeRDP to authenticate against a `SAM` file are affected. Version 2.7.0 contains a fix for this issue. As a workaround, use custom authentication via `HashCallback` and/or ensure the `SAM` database path configured is valid and the application has file handles left.

CVE-2022-39282

FreeRDP based clients on unix systems using `/parallel` command line switch might read uninitialized data and send it to the server the client is currently connected to. FreeRDP based server implementations are not affected.

CVE-2023-39283

All FreeRDP based clients when using the `/video` command line switch might read uninitialized data, decode it as audio/video and display the result.
FreeRDP based server implementations are not affected.

CVE-2022-39316

In affected versions there is an out of bound read in ZGFX decoder component of FreeRDP. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it likely resulting in a crash.

CVE-2022-39318

Affected versions of FreeRDP are missing input validation in `urbdrc` channel.
A malicious server can trick a FreeRDP based client to crash with division by zero.

CVE-2022-39319

Affected versions of FreeRDP are missing input length validation in the `urbdrc` channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server.

CVE-2022-39347

Affected versions of FreeRDP are missing path canonicalization and base path check for `drive` channel. A malicious server can trick a FreeRDP based client to read files outside the shared directory.

CVE-2022-41877

Affected versions of FreeRDP are missing input length validation in `drive` channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server.

For Debian 10 buster, these problems have been fixed in version 2.3.0+dfsg1-2+deb10u4.

We recommend that you upgrade your freerdp2 packages.

For the detailed security status of freerdp2 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/freerdp2

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

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

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

Solution

Upgrade the freerdp2-dev packages.

Plugin Details

Severity: Critical

ID: 185962

File Name: debian_DLA-3654.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/17/2023

Updated: 1/22/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2022-24883

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libfreerdp-shadow-subsystem2-2, p-cpe:/a:debian:debian_linux:libfreerdp2-2, p-cpe:/a:debian:debian_linux:freerdp2-wayland, p-cpe:/a:debian:debian_linux:winpr-utils, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:freerdp2-x11, p-cpe:/a:debian:debian_linux:libwinpr-tools2-2, p-cpe:/a:debian:debian_linux:libuwac0-0, p-cpe:/a:debian:debian_linux:freerdp2-shadow-x11, p-cpe:/a:debian:debian_linux:libfreerdp-client2-2, p-cpe:/a:debian:debian_linux:libfreerdp-server2-2, p-cpe:/a:debian:debian_linux:libfreerdp-shadow2-2, p-cpe:/a:debian:debian_linux:freerdp2-dev, p-cpe:/a:debian:debian_linux:libwinpr2-2, p-cpe:/a:debian:debian_linux:libuwac0-dev, p-cpe:/a:debian:debian_linux:libwinpr2-dev

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/17/2023

Vulnerability Publication Date: 10/21/2021

Reference Information

CVE: CVE-2021-41160, CVE-2022-24883, CVE-2022-39282, CVE-2022-39283, CVE-2022-39316, CVE-2022-39318, CVE-2022-39319, CVE-2022-39347, CVE-2022-41877, CVE-2023-39283

Detections

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