Bug 648656 (CVE-2010-4072)

Summary:	CVE-2010-4072 kernel: ipc/shm.c: reading uninitialized stack memory
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
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, bhu, dfeng, dhoward, fhrbata, jkacur, jolsa, lgoncalv, peterm, plyons, rkhan, vgoyal, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-19 09:15:57 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:	648685, 648686, 648687, 648688, 648689, 648816, 648817
Bug Blocks:

Description Petr Matousek 2010-11-01 21:11:27 UTC

Description of problem:
The old shm interface allows unprivileged users to read uninitialized stack memory, because shmid_ds structure declared on the stack is not altered or zeroed before being copied back to the user.

Reference:
http://www.openwall.com/lists/oss-security/2010/10/07/1
http://lkml.org/lkml/2010/10/6/454

Acknowledgements:

Red Hat would like to thank Vasiliy Kulikov of Openwall and Kees Cook for reporting this issue.

Comment 3 Petr Matousek 2010-11-02 10:32:24 UTC

Statement:

This issue is not planned to be fixed in Red Hat Enterprise Linux 3, due to this product being in Extended Life Cycle Phase of its maintenance life-cycle, where only qualified security errata of critical impact are addressed.
                                   
For further information about the Errata Support Policy, visit:
http://www.redhat.com/security/updates/errata

Comment 5 Eugene Teo (Security Response) 2010-11-22 13:25:55 UTC

Upstream commit:
http://git.kernel.org/linus/3af54c9bd9e6f14f896aac1bb0e8405ae0bc7a44

Comment 6 Kyle McMartin 2010-11-23 16:02:14 UTC

Thanks, picked this up for Fedora (since it also seems missing from the latest stable.)

Comment 7 errata-xmlrpc 2010-12-08 19:09:47 UTC

This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2010:0958 https://rhn.redhat.com/errata/RHSA-2010-0958.html

Comment 8 errata-xmlrpc 2011-01-11 19:46:16 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0007 https://rhn.redhat.com/errata/RHSA-2011-0007.html

Comment 9 errata-xmlrpc 2011-01-13 21:58:53 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0017 https://rhn.redhat.com/errata/RHSA-2011-0017.html

Comment 10 errata-xmlrpc 2011-01-14 09:02:46 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0017 https://rhn.redhat.com/errata/RHSA-2011-0017.html

Comment 11 errata-xmlrpc 2011-01-18 17:45:35 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2011:0162 https://rhn.redhat.com/errata/RHSA-2011-0162.html