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Ubuntu 18.04 LTS / 20.04 LTS : BlueZ vulnerabilities (USN-4989-1)

high Nessus Plugin ID 150809

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4989-1 advisory.

 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)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4989-1

Plugin Details

Severity: High

ID: 150809

File Name: ubuntu_USN-4989-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 6/16/2021

Updated: 8/28/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-27153

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:bluez-cups, p-cpe:/a:canonical:ubuntu_linux:bluez-tests, p-cpe:/a:canonical:ubuntu_linux:libbluetooth3, p-cpe:/a:canonical:ubuntu_linux:bluez-hcidump, p-cpe:/a:canonical:ubuntu_linux:libbluetooth-dev, p-cpe:/a:canonical:ubuntu_linux:bluez, p-cpe:/a:canonical:ubuntu_linux:bluetooth, p-cpe:/a:canonical:ubuntu_linux:bluez-obexd

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/16/2021

Vulnerability Publication Date: 10/15/2020

Reference Information

CVE: CVE-2020-26558, CVE-2020-27153, CVE-2021-3588

USN: 4989-1