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Ubuntu: Security Advisory for bluez (USN-5155-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'bluez' package(s) announced via the USN-5155-1 advisory.
Insight
Insight
It was discovered that BlueZ incorrectly handled the Discoverable status when a device is powered down. This could result in devices being powered up discoverable, contrary to expectations. This issue only affected Ubuntu 20.04 LTS, Ubuntu 21.04, and Ubuntu 21.10. (CVE-2021-3658) It was discovered that BlueZ incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause BlueZ to consume resources, leading to a denial of service. (CVE-2021-41229) It was discovered that the BlueZ gatt server incorrectly handled disconnects. A remote attacker could possibly use this issue to cause BlueZ to crash, leading to a denial of service. (CVE-2021-43400)
Affected Software
Affected Software
'bluez' package(s) on Ubuntu 20.04 LTS, Ubuntu 18.04 LTS.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
Please install the updated package(s).