Bug 1491344 (CVE-2017-14340) - CVE-2017-14340 kernel: xfs: unprivileged user kernel oops
Summary: CVE-2017-14340 kernel: xfs: unprivileged user kernel oops
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-14340
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1493018
Blocks: 1490687
TreeView+ depends on / blocked
 
Reported: 2017-09-13 14:21 UTC by Adam Mariš
Modified: 2021-02-17 01:30 UTC (History)
45 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A flaw was found where the XFS filesystem code mishandles a user-settable inode flag in the Linux kernel prior to 4.14-rc1. This can cause a local denial of service via a kernel panic.
Clone Of:
Environment:
Last Closed: 2019-06-08 03:25:24 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2918 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2017-10-19 17:24:24 UTC

Description Adam Mariš 2017-09-13 14:21:08 UTC 
It was found that XFS filesystem code mishandles a user settable inode flag in the Linux kernels prior to 4.14-rc1 which can cause a local denial of service via a kernel panic.

External References:

http://seclists.org/oss-sec/2017/q3/436

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b31ff3cdf540110da4572e3e29bd172087af65cc
Comment 1 Vladis Dronov 2017-09-19 07:30:57 UTC 
Acknowledgments:

Name: Dave Chinner (Red Hat)
Comment 4 Vladis Dronov 2017-09-19 07:52:28 UTC 
Statement:

This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7  as the code with the flaw is not built in these products due to theirs build configuration.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux MRG-2. Future updates for the respective releases may address this issue.
Comment 5 errata-xmlrpc 2017-10-19 13:28:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise MRG 2

Via RHSA-2017:2918 https://access.redhat.com/errata/RHSA-2017:2918
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