USN-4311-1: BlueZ vulnerabilities

USN-4311-1: BlueZ vulnerabilities

bluez vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in BlueZ.

Software Description

  • bluez – Bluetooth tools and daemons

Details

It was discovered that BlueZ incorrectly handled bonding HID and HOGP
devices. A local attacker could possibly use this issue to impersonate
non-bonded devices. (CVE-2020-0556)

It was discovered that BlueZ incorrectly handled certain commands. A local
attacker could use this issue to cause BlueZ to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 16.04 LTS. (CVE-2016-7837)

Update instructions

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

Ubuntu 19.10
bluez5.50-0ubuntu5.1
libbluetooth35.50-0ubuntu5.1
Ubuntu 18.04 LTS
bluez5.48-0ubuntu3.4
libbluetooth35.48-0ubuntu3.4
Ubuntu 16.04 LTS
bluez5.37-0ubuntu5.3
libbluetooth35.37-0ubuntu5.3

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

Source: USN-4311-1: BlueZ vulnerabilities

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