Bug 1256728 – CVE-2015-5231 criu: service daemon allows to bypass ptrace policy

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Bug 1256728 - (CVE-2015-5231) CVE-2015-5231 criu: service daemon allows to bypass ptrace policy

Summary:	CVE-2015-5231 criu: service daemon allows to bypass ptrace policy

Status:	NEW

Aliases:	CVE-2015-5231

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20150825,reported=2...
Keywords:	Security

Depends On:	1255787 1256747
Blocks:	1255785
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Reported:	2015-08-25 06:50 EDT by Florian Weimer
Modified:	2015-08-25 08:10 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
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RHEL 7.3 requirements from Atomic Host:
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Description Florian Weimer 2015-08-25 06:50:59 EDT

It was discovered that criu service daemon allowed local users to dump
processes as long as the user and group IDs match, disregarding other
restrictions on process dumping or ptrace access.  This failure to enforce
a configured security policy may lead to information disclosure.

Acknowledgements:

This issue was discovered by Florian Weimer of Red Hat Product Security.

Comment 3 Florian Weimer 2015-08-25 07:40:58 EDT

Created criu tracking bugs for this issue:

Affects: fedora-all [bug 1256747]

Comment 4 Florian Weimer 2015-08-25 07:59:57 EDT

Upstream discussion:

  http://lists.openvz.org/pipermail/criu/2015-August/021847.html

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