Bug 1541883 (CVE-2017-16912)

Summary:	CVE-2017-16912 kernel: Out-of-bounds read in usbip/stub_rx.c:get_pipe() allows attackers to cause a denial of service via crafted USB over IP packet
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aquini, bhu, blc, dhoward, esammons, fhrbata, hkrzesin, hwkernel-mgr, iboverma, jforbes, jkacur, jross, kernel-mgr, lgoncalv, lwang, matt, mcressma, mguzik, mlangsdo, nmurray, plougher, rt-maint, rvrbovsk, skozina, vdronov, williams, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 4.4.114, kernel 4.9.71, kernel 4.14.8	Doc Type:	Bug Fix
Doc Text:	An out-of-bounds read in drivers/usb/usbip/stub_rx.c:get_pipe() of the Linux Kernel before version 4.14.8, 4.9.71, and 4.4.114 allows attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-02-15 11:17:10 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:	1545617
Bug Blocks:	1541886

Description Sam Fowler 2018-02-05 06:41:06 UTC

An out-of-bounds read in drivers/usb/usbip/stub_rx.c:get_pipe() of the Linux Kernel can allow attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet.

References:

https://secuniaresearch.flexerasoftware.com/secunia_research/2017-21/

https://www.spinics.net/lists/linux-usb/msg163481.html

An upstream Commit:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=635f545a7e8be7596b9b2b6a43cab6bbd5a88e43

Comment 2 Vladis Dronov 2018-02-15 11:07:18 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1545617]

Comment 4 Vladis Dronov 2018-02-15 11:17:10 UTC

Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 and 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE, as the code with the flaw is not enabled and is not built in the products listed.

Comment 5 Justin M. Forbes 2018-02-15 13:10:39 UTC

This was fixed for Fedora with the 4.14.8 stable updates.