Bug 677850 (CVE-2011-0710)

Summary:	CVE-2011-0710 kernel: s390 task_show_regs infoleak
Product:	[Other] Security Response	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	arozansk, dhoward, jolsa, kernel-mgr, kmcmartin, lwang, plyons, rkhan, sgrubb, tcallawa, vgoyal, vkrizan, vmayatsk
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:	2015-07-29 13:50:30 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	677852, 677853, 677854, 677855
Bug Blocks:

Description Eugene Teo (Security Response) 2011-02-16 04:02:39 UTC

task_show_regs used to be a debugging aid in the early bringup days of Linux on s390. /proc/<pid>/status is a world readable file, it is not a good idea to show the registers of a process. The only correct fix is to remove task_show_regs.

Upstream commit:
http://git.kernel.org/linus/261cd298a8c363d7985e3482946edb4bfedacf98

Comment 3 Eugene Teo (Security Response) 2011-03-11 06:21:59 UTC

Statement:

This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise MRG as it does not have support for the S390 architecture. A future kernel update in Red Hat Enterprise Linux 6 may address this flaw. Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle,
https://access.redhat.com/support/policy/updates/errata/, therefore the fix for
this issue is not currently planned to be included in the future updates. This has been addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2011-0429.html.

Comment 4 errata-xmlrpc 2011-04-08 02:57:44 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0421 https://rhn.redhat.com/errata/RHSA-2011-0421.html

Comment 5 errata-xmlrpc 2011-04-12 18:20:12 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0429 https://rhn.redhat.com/errata/RHSA-2011-0429.html