Bug 1536155 (CVE-2017-13220)

Summary:	CVE-2017-13220 kernel: Possible out-of-bound access in Bluetooth subsystem
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bnocera, dwmw2, dzickus, meissner, security-response-team, spacewar, vdronov
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	An out-of-bound access, and a possible memory corruption vulnerability leading to a system crash, was found in the Linux kernel in the Bluetooth subsystem. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-04-10 09:18:08 UTC	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:	1296707, 1537198
Bug Blocks:	1536160

Description Laura Pardo 2018-01-18 18:01:37 UTC

An out-of-bound access and a possible memory corruption vulnerability leading to a system crash was found in the Linux kernel in the BlueTooth subsystem.  Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.

Previously this vulnerability was referenced as a flaw in Android kernel with an id of A-63527053.

References:

https://source.android.com/security/bulletin/pixel/2018-01-01#kernel-components

http://seclists.org/oss-sec/2018/q2/28

An upstream fix:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=51bda2bca53b265715ca1852528f38dc67429d9a

Comment 1 Laura Pardo 2018-01-22 16:41:50 UTC

Created bluez tracking bugs for this issue:

Affects: fedora-all [bug 1537198]

Comment 5 Vladis Dronov 2018-04-10 09:18:08 UTC

Notes:

Per discussion with Android security developer this flaw is related to
the upstream commit 51bda2bca53b ("Bluetooth: hidp_connection_add() unsafe
use of l2cap_pi()").