Packages
- bluez - Bluetooth tools and daemons
Details
It was discovered that BlueZ incorrectly checked certain permissions when
pairing. A local attacker could possibly use this issue to impersonate
devices. (CVE-2020-26558)
Jay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT
events. 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 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27153)
Ziming Zhang discovered that BlueZ incorrectly handled certain array
indexes. A local attacker could use this issue to cause BlueZ to crash,
resulting in a denial of service, or possibly obtain sensitive information.
This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-3588)
It was discovered that BlueZ incorrectly checked certain permissions when
pairing. A local attacker could possibly use this issue to impersonate
devices. (CVE-2020-26558)
Jay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT
events. 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 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27153)
Ziming Zhang discovered that BlueZ incorrectly handled certain array
indexes. A local attacker could use this issue to cause BlueZ to crash,
resulting in a denial of service, or possibly obtain sensitive information.
This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-3588)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 21.04 hirsute | libbluetooth3 – 5.56-0ubuntu4.1 | ||
| bluez – 5.56-0ubuntu4.1 | |||
| 20.10 groovy | libbluetooth3 – 5.55-0ubuntu1.2 | ||
| bluez – 5.55-0ubuntu1.2 | |||
| 20.04 focal | libbluetooth3 – 5.53-0ubuntu3.2 | ||
| bluez – 5.53-0ubuntu3.2 | |||
| 18.04 bionic | libbluetooth3 – 5.48-0ubuntu3.5 | ||
| bluez – 5.48-0ubuntu3.5 | |||
Reduce your security exposure
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