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freerdp2 vulnerabilities · Page 12

Vulnerabilities published for freerdp2 in the last 30 days: 69. Listed in the KEV catalogue: 0.

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Vulnerabilities: 276

  1. CVE-2022-39316

    Medium · CVSS 4.8EPSS 1.06%Fix available

    Out of bound read in FreeRDP

    FreeRDP is a free remote desktop protocol library and clients. 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. This issue has been addressed in the 2.9.0 release. Users are advised to upgrade.

    • Update to 2.9.0+dfsg1-1
    Published Updated
  2. CVE-2022-39283

    Medium · CVSS 5.9EPSS 1.38%Fix available

    FreeRDP may read and display out of bounds data

    FreeRDP is a free remote desktop protocol library and clients. 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. This issue has been patched in version 2.8.1. If you cannot upgrade do not use the `/video` switch.

    • Update to 2.8.1+dfsg1-1
    Published Updated
  3. CVE-2022-39282

    Low · CVSS 3.5EPSS 1.1%Fix available

    RDP client: Read of uninitialized memory with parallel port redirection

    FreeRDP is a free remote desktop protocol library and clients. 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. Please upgrade to 2.8.1 where this issue is patched. If unable to upgrade, do not use parallel port redirection (`/parallel` command line switch) as a workaround.

    • Update to 2.8.1+dfsg1-1
    Published Updated
  4. CVE-2022-24883

    High · CVSS 7.4EPSS 2.34%Fix available

    FreeRDP Server authentication might allow invalid credentials to pass

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). 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.

    • Update to 2.7.0+dfsg1-1
    Published Updated
  5. CVE-2022-24882

    Critical · CVSS 9.1EPSS 2.85%Fix available

    Server side NTLM does not properly check parameters in FreeRDP

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). In versions prior to 2.7.0, NT LAN Manager (NTLM) authentication does not properly abort when someone provides and empty password value. This issue affects FreeRDP based RDP Server implementations. RDP clients are not affected. The vulnerability is patched in FreeRDP 2.7.0. There are currently no known workarounds.

    • Update to 2.7.0+dfsg1-1
    Published Updated
  6. CVE-2021-41160

    Medium · CVSS 5.3EPSS 1.66%Fix available

    Improper region checks in FreeRDP allow out of bound write to memory

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. 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. This issue has been patched in FreeRDP 2.4.1.

    • Update to 2.4.1+dfsg1-1
    Published Updated
  7. CVE-2021-41159

    Medium · CVSS 5.8EPSS 1.49%Fix available

    Improper client input validation for FreeRDP gateway connections allows to overwrite memory

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP clients prior to version 2.4.1 using gateway connections (`/gt:rpc`) fail to validate input data. A malicious gateway might allow client memory to be written out of bounds. This issue has been resolved in version 2.4.1. If you are unable to update then use `/gt:http` rather than /gt:rdp connections if possible or use a direct connection without a gateway.

    • Update to 2.4.1+dfsg1-1
    Published Updated
  8. CVE-2020-15103

    Low · CVSS 3.5EPSS 1.46%Fix available

    Integer Overflow in FreeRDP

    In FreeRDP less than or equal to 2.1.2, an integer overflow exists due to missing input sanitation in rdpegfx channel. All FreeRDP clients are affected. The input rectangles from the server are not checked against local surface coordinates and blindly accepted. A malicious server can send data that will crash the client later on (invalid length arguments to a `memcpy`) This has been fixed in 2.2.0. As a workaround, stop using command line arguments /gfx, /gfx-h264 and /network:auto

    • Update to 2.2.0+dfsg1-1
    Published Updated

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