Bug 1256728 (CVE-2015-5231)

Summary:	CVE-2015-5231 criu: service daemon allows to bypass ptrace policy
Product:	[Other] Security Response	Reporter:	Florian Weimer <fweimer>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	areber, carnil, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-21 00:47:50 UTC	Type:	---
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:	1255787, 1256747
Bug Blocks:	1255785

Description Florian Weimer 2015-08-25 10:50:59 UTC

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 11:40:58 UTC

Created criu tracking bugs for this issue:

Affects: fedora-all [bug 1256747]

Comment 4 Florian Weimer 2015-08-25 11:59:57 UTC

Upstream discussion:

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