Bug 639879 (CVE-2010-3698)

Summary:	CVE-2010-3698 kvm: invalid selector in fs/gs causes kernel panic
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:	Zhang Kexin <kzhang>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bsettle, ehabkost, fhrbata, iheim, kernel-mgr, knoel, kzhang, lwang, mjenner, mkenneth, mtosatti, rkhan, security-response-team, virt-maint, vkrizan
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 13:00:21 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:	639884, 639885, 639886, 639887
Bug Blocks:

Description Petr Matousek 2010-10-04 09:31:43 UTC

Invoking ioctl(KVM_RUN) while having invalid selector in fs and/or gs register (via LDT modifications) forces kernel to panic (DoS).

Comment 7 Chuck Ebbert 2010-10-21 00:42:55 UTC

Fixed in 2.6.36:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9581d442b9058d3699b4be568b6e5eae38a41493

Comment 8 errata-xmlrpc 2010-11-10 19:09:44 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2010:0842 https://rhn.redhat.com/errata/RHSA-2010-0842.html

Comment 9 errata-xmlrpc 2010-11-22 19:35:39 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2010:0842 https://rhn.redhat.com/errata/RHSA-2010-0842.html

Comment 10 errata-xmlrpc 2010-12-06 19:09:38 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2010:0898 https://rhn.redhat.com/errata/RHSA-2010-0898.html