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Issue 789493 link

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Issue metadata

Status: Duplicate
Merged: issue 795790
Owner:
Closed: Dec 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 3
Type: Bug-Security



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CVE-2017-16648 CrOS: Vulnerability reported in Linux kernel

Project Member Reported by vomit.go...@appspot.gserviceaccount.com, Nov 29 2017

Issue description

VOMIT (go/vomit) has received an external vulnerability report for the Linux kernel. 

Advisory: CVE-2017-16648
  Details: http://vomit.googleplex.com/advisory?id=CVE/CVE-2017-16648
  CVSS severity score: 7.2/10.0
  Description:

The dvb_frontend_free function in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device. NOTE: the function was later renamed __dvb_frontend_free.



This bug was filed by http://go/vomit
Please contact us at vomit-team@google.com if you need any assistance.

 

Comment 1 by groeck@chromium.org, Nov 29 2017

Cc: wonderfly@chromium.org
Labels: Security_Severity-High Security_Impact-None Pri-3
Owner: groeck@chromium.org
Status: ExternalDependency (was: Untriaged)
Upstream b1cb7372fa82 ("dvb_frontend: don't use-after-free the frontend struct"). Only affects beaglebone configurations. Will fix with stable tree merges if/when available for chromeos-4.4 and chromeos-4.14. WontFix for older kernels.

The problem was originally introduced with commit 1f862a68df24 ("[media] dvb_frontend: move kref to struct dvb_frontend") in November 2016. chromeos-4.4 and earlier kernels are therefore not affected. Still waiting for fix to be available in linux-4.14.y.

Comment 3 by groeck@chromium.org, Dec 14 2017

Requested upstream merge into v4.14-stable.

Comment 4 by groeck@chromium.org, Dec 15 2017

Fix queued for v4.14.7.

Comment 5 by groeck@chromium.org, Dec 20 2017

Mergedinto: 795790
Status: Duplicate (was: ExternalDependency)
The merge of v4.14.7 into chromeos-4.14 is ongoing. Marking as duplicate of the merge bug.

Project Member

Comment 6 by sheriffbot@chromium.org, Mar 29 2018

Labels: allpublic
This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

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