USN-5784-1: usbredir vulnerability

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• usbredir - usbredir libraries and utilities

Details

It was discovered that usbredir incorrectly handled memory when
serializing large amounts of data in the case of a slow or blocked
destination. An attacker could possibly use this issue to cause
applications using usbredir to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04

• usbredirserver - 0.8.0-1ubuntu0.1
• libusbredirhost1 - 0.8.0-1ubuntu0.1
• libusbredirparser1 - 0.8.0-1ubuntu0.1

Ubuntu 18.04

• usbredirserver - 0.7.1-1ubuntu0.18.04.1
• libusbredirhost1 - 0.7.1-1ubuntu0.18.04.1
• libusbredirparser1 - 0.7.1-1ubuntu0.18.04.1

Ubuntu 16.04

• usbredirserver - 0.7.1-1ubuntu0.16.04.1~esm1
  Available with Ubuntu Pro
• libusbredirhost1 - 0.7.1-1ubuntu0.16.04.1~esm1
  Available with Ubuntu Pro
• libusbredirparser1 - 0.7.1-1ubuntu0.16.04.1~esm1
  Available with Ubuntu Pro

Ubuntu 14.04

• usbredirserver - 0.6-2ubuntu1.1+esm1
  Available with Ubuntu Pro
• libusbredirhost1 - 0.6-2ubuntu1.1+esm1
  Available with Ubuntu Pro
• libusbredirparser1 - 0.6-2ubuntu1.1+esm1
  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

• CVE-2021-3700