Bug 1743580 (CVE-2019-15213)

Summary:	CVE-2019-15213 kernel: use-after-free caused by malicious USB device in drivers/media/usb/dvb-usb/dvb-usb-init.c
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, airlied, bhu, blc, brdeoliv, bskeggs, dhoward, dvlasenk, esammons, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, itamar, jarodwilson, jeremy, jforbes, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, mcressma, mjg59, mlangsdo, nmurray, rkeshri, rt-maint, rvrbovsk, steved, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in the USB DVB media access driver in the Linux kernel. This flaw could allow an attacker to crash the system at device disconnect or for a kernel information leak problem to occur. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-27 10:48:17 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:	1743581, 1812370, 1812371, 1812372, 1812373, 1812374, 1825410
Bug Blocks:	1743583

Description Dhananjay Arunesh 2019-08-20 09:10:56 UTC

A use-after-free flaw was found in dvb_usb_device_exit in drivers/media/usb/dvb-usb/dvb-usb-init.c in USB DVB media access. This flaw could allow an attacker to crash the system at device disconnect. This vulnerability could even lead to a kernel information leak problem.


Reference:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.3
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cf97230cd5f36b7665099083272595c55d72be7
https://syzkaller.appspot.com/bug?id=a53c9c9dd2981bfdbfbcbc1ddbd35595eda8bced

Comment 1 Dhananjay Arunesh 2019-08-20 09:11:47 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1743581]

Comment 2 Justin M. Forbes 2019-08-20 12:49:27 UTC

This was fixed for Fedora with the 5.2.3 stable updates.

Comment 5 Rohit Keshri 2020-03-11 10:34:53 UTC

Mitigation:

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.