CVE-2021-3588

Publication date 10 June 2021

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The cli_feat_read_cb() function in src/gatt-database.c does not perform bounds checks on the 'offset' variable before using it as an index into an array for reading.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
bluez	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Fixed 5.55-0ubuntu1.2
	20.04 LTS focal	Fixed 5.53-0ubuntu3.2
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
bluez	Upstream: ?id=3a4 Upstream: ?id=871 Upstream: ?id=6a5

Severity score breakdown

CVSS version: CVSS v3.0

Base score 3.3 · Low

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality impact	Low
Integrity impact	None
Availability impact	None

Scores

Parameter	Value
Base score	3.3 · Low
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-4989-1
BlueZ vulnerabilities
16 June 2021

Other references

https://www.cve.org/CVERecord?id=CVE-2021-3588