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Bug 1715268

Summary:	[Hardening] Prevent ptrace working in seccomp sandbox
Product:	Red Hat Enterprise Linux 6	Reporter:	Wade Mealing <wmealing>
Component:	kernel	Assignee:	Red Hat Kernel Manager <kernel-mgr>
kernel sub component:	Security	QA Contact:	Red Hat Kernel QE team <kernel-qe>
Status:	CLOSED WONTFIX	Docs Contact:
Severity:	unspecified
Priority:	unspecified	CC:	pravisha
Version:	6.4
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1715271 1715272 1715436 (view as bug list)		Environment:
Last Closed:	2019-08-14 12:48:52 UTC	Type:	Bug
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:
Bug Blocks:	1715271, 1715272, 1715436

Description Wade Mealing 2019-05-30 01:21:16 UTC

Description of problem:

In the seccomp implementation prior to kernel version 4.8, there is a possible seccomp bypass due to seccomp policies that allow the use of ptrace. This could lead to local escalation of privilege with no additional execution privileges needed. 

Additional info:

This is a behavioural change that some applications may rely on (I don't expect that it will).

Comment 3 RHEL Program Management 2019-08-14 12:48:52 UTC

Product Management has reviewed and declined this request.
You may appeal this decision by reopening this request.