CVE-2022-39320 — Heap buffer overflow in urbdrc channel

Affected: FreeRDP

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP may attempt integer addition on too narrow types leads to allocation of a buffer too small holding the data written. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the `/usb` redirection switch.

USN-5734-1 — freerdp2 vulnerabilities

Affected: Ubuntu:18.04:LTS: freerdp2, Ubuntu:20.04:LTS: freerdp2, Ubuntu:22.04:LTS: freerdp2

It was discovered that FreeRDP incorrectly handled certain data lenghts. A malicious server could use this issue to cause FreeRDP clients to crash, resulting in a denial of service, or possibly obtain sensitive information. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-39282, CVE-2022-39283)

It was discovered that FreeRDP incorrectly handled certain data lenghts. A malicious server could use this issue to cause FreeRDP clients to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2022-39316, CVE-2022-39317, CVE-2022-39318, CVE-2022-39319, CVE-2022-39320)

It was discovered that FreeRDP incorrectly handled certain path checks. A malicious server could use this issue to cause FreeRDP clients to read files outside of the shared directory. (CVE-2022-39347)

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CVE-2022-39320 — Heap buffer overflow in urbdrc channel

USN-5734-1 — freerdp2 vulnerabilities