USN-4989-1

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USN-4989-1

Summary: bluez vulnerabilities

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)

References: https://ubuntu.com/security/notices/USN-4989-1, https://ubuntu.com/security/CVE-2020-26558, https://ubuntu.com/security/CVE-2020-27153, https://ubuntu.com/security/CVE-2021-3588