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CVE-2022-39318

Status Candidate

Overview

FreeRDP is a free remote desktop protocol library and clients. 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. This issue has been addressed in version 2.9.0. All users are advised to upgrade. Users unable to upgrade should not use the `/usb` redirection switch.

Related Files

Ubuntu Security Notice USN-5734-1
Posted Nov 23, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5734-1 - 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. 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.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2022-39282, CVE-2022-39318, CVE-2022-39320, CVE-2022-39347
SHA-256 | 9609ba4e931201e651dbbf463f2757f7ca9c25e428f66409e31b3745d1f946c1
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