Bug 1317014 (CVE-2016-2185)

Summary: CVE-2016-2185 kernel: Kernel panic on invalid USB device descriptor (ati_remote2 driver)
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: agordeev, aquini, bhu, dhoward, esammons, fhrbata, iboverma, jkacur, joelsmith, jross, kernel-mgr, kstutsma, lgoncalv, lwang, matt, mcressma, mguzik, nmurray, pholasek, plougher, rvrbovsk, security-response-team, slawomir, vdronov, williams, wmealing
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-03-23 16:21:59 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: 1283362, 1283363, 1317010, 1317471    
Bug Blocks: 1317020    
Attachments:
Description Flags
ati-remote2-null-deref.patch none

Description Adam Mariš 2016-03-11 17:13:48 UTC 
A flaw was found in in the Linux kernel's USB device management code which could cause a kernel panic when a device which required ati_remote2 kernel module.  The kernel would panic causing null pointer dereference attempting to access a non existent interface descriptor.  The ati_remote2 driver assumes that there will be at least two interface-descriptors with associated endpoint-descriptors. 


Product bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1283362
https://bugzilla.redhat.com/show_bug.cgi?id=1283363

Public via:

http://seclists.org/bugtraq/2016/Mar/90

Red Hat assigned CVE-2016-2185  to this issue.

Upstream patch:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=950336ba3e4a1ffd2ca60d29f6ef386dd2c7351d
Comment 1 Adam Mariš 2016-03-11 17:14:04 UTC 
Acknowledgments:

Name: Ralf Spenneberg (OpenSource Security)
Comment 3 Adam Mariš 2016-03-14 10:31:30 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1317471]
Comment 4 Vladis Dronov 2016-03-23 15:16:34 UTC 
Statement:

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Comment 5 Vladis Dronov 2016-03-23 15:56:32 UTC 
Created attachment 1139648 [details]
ati-remote2-null-deref.patch
Comment 6 Vladis Dronov 2016-03-23 16:16:16 UTC 
Proposed upstream patch (linux-usb@ and linux-input@ lists):

http://marc.info/?l=linux-usb&m=145874840924378&w=2 | http://article.gmane.org/gmane.linux.usb.general/139169 | http://www.spinics.net/lists/linux-usb/msg138107.html
http://marc.info/?l=linux-input&m=145874841024379&w=2 | http://www.spinics.net/lists/linux-input/msg43818.html
Comment 7 Fedora Update System 2016-04-02 00:43:21 UTC 
kernel-4.5.0-302.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2016-04-02 15:51:11 UTC 
kernel-4.5.0-302.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 9 Fedora Update System 2016-04-08 15:52:56 UTC 
kernel-4.4.6-301.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 10 Fedora Update System 2016-04-08 20:20:39 UTC 
kernel-4.4.6-201.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.