Bug 1970592 (CVE-2021-3588)

Summary:	CVE-2021-3588 bluez: out-of-bounds read in cli_feat_read_cb() in src/gatt-database.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	bnocera, darcari, dwmw2, dzickus, hwkernel-mgr, spacewar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	bluez-5.56	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1974292, 1970593, 1973514
Bug Blocks:	1970595

Description Guilherme de Almeida Suckevicz 2021-06-10 18:21:20 UTC

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.

Reference:
https://github.com/bluez/bluez/issues/70

Comment 1 Guilherme de Almeida Suckevicz 2021-06-10 18:21:39 UTC

Created bluez tracking bugs for this issue:

Affects: fedora-all [bug 1970593]