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Vulnerability · Published Mar 2, 2022 · Assigned by redhat

CVE-2021-3658

Medium 6.5

In plain English

A medium-severity incorrect authorization in bluez. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.8%top 43.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

bluetoothd from bluez incorrectly saves adapters' Discoverable status when a device is powered down, and restores it when powered up. If a device is powered down while discoverable, it will be discoverable when powered on again. This could lead to inadvertent exposure of the bluetooth stack to physically nearby attackers.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12bluez5.61-1DEBIAN-CVE-2021-3658
Debian:13bluez5.61-1DEBIAN-CVE-2021-3658
Debian:14bluez5.61-1DEBIAN-CVE-2021-3658

Affected products (as reported)

VendorProductVersions
n/a bluez Fixedin - 5.61 and above.

Weakness: CWE-863 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References