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Issue 772632 link

Starred by 1 user
Status: WontFix
Owner:
groeck@chromium.org
Closed: Oct 2017
Cc:
wonderfly@google.com
chromeos-kernel-security-bug-access@google.com
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 3
Type: Bug-Security



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CVE-2017-14954 CrOS: Vulnerability reported in Linux kernel

Project Member Reported by vomit.go...@appspot.gserviceaccount.com, Oct 7 2017 
VOMIT (go/vomit) has received an external vulnerability report for the Linux kernel. 

Advisory: CVE-2017-14954
  Details: http://vomit.googleplex.com/advisory?id=CVE/CVE-2017-14954
  CVSS severity score: 2.1/10.0
  Description:

The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 accesses rusage data structures in unintended cases, which allows local users to obtain sensitive information, and bypass the KASLR protection mechanism, via a crafted system call.



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, Oct 7 2017

Cc: wonderfly@google.com
Labels: Security_Impact-Stable Security_Severity-Low M-62 Pri-1
Owner: groeck@chromium.org
Status: Assigned (was: Untriaged)
Upstream 6c85501f2fabc ("fix infoleak in waitid(2)"). Affects all kernel versions.

Comment 2 by groeck@chromium.org, Oct 7 2017

Labels: -Pri-1 -Security_Impact-Stable -M-62 Security_Impact-None Pri-3
Status: WontFix (was: Assigned)
#1: Impact analysis was wrong. Problem was introduced with commit ce72a16fa705f ("wait4(2)/waitid(2): separate copying rusage to userland") in v4.13. No chromeos versions affected. Nothing to fix.
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