Bug 1462165 (CVE-2017-1000379) - CVE-2017-1000379 kernel: Incorrectly mapped contents of PIE executable
Summary: CVE-2017-1000379 kernel: Incorrectly mapped contents of PIE executable
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-1000379
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1462833
Blocks: 1473657
TreeView+ depends on / blocked
 
Reported: 2017-06-16 10:53 UTC by Andrej Nemec
Modified: 2021-02-17 02:01 UTC (History)
41 users (show)

Fixed In Version:
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Last Closed: 2017-10-05 21:32:42 UTC
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Description Andrej Nemec 2017-06-16 10:53:43 UTC 
The Linux Kernel running on AMD64 systems will sometimes map the contents of PIE executable, the heap or ld.so to where the stack is mapped allowing attackers to more easily manipulate the stack.
Comment 1 Andrej Nemec 2017-06-16 10:53:54 UTC 
Acknowledgments:

Name: Qualys Inc
Comment 2 Andrej Nemec 2017-06-16 10:54:37 UTC 
External References:

https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

Upstream patchset:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1be7107fbe18eed3e319a6c3e83c78254b693acb
Comment 3 Petr Matousek 2017-06-19 16:09:06 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1462833]
Comment 4 Wade Mealing 2017-08-29 08:17:17 UTC 
Statement:

This issue was part of the stack guard fixes that was fixed along side the CVE-2017-1000364 flaw.  This issue has previously affected Red Hat Enterprise Linux 5,6,7 and MRG-2.  This issue is currently fixed in most versions of shipping products.
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