Bug 569902 (CVE-2010-0003)

Summary:	VUL-1: CVE-2010-0003: kernel: infoleak if print-fatal-signals=1
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Ludwig Nussel <lnussel>
Component:	General	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P2 - High	CC:	meissner, security-team
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
Whiteboard:	maint:released:11.2:30542 maint:released:sle11-moblin20:30615 maint:released:sle11-moblin20s:30615 maint:released:11.0:30697 maint:released:11.1:31244 maint:released:sle11:31236
Found By:	Other	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Ludwig Nussel 2010-01-12 08:54:29 UTC

Your friendly security team received the following report via oss-security.
Please respond ASAP.
The issue is public.

minor issue

Date: Tue, 12 Jan 2010 10:54:58 +0800
From: Eugene Teo <eugene@redhat.com>
To: oss-security@lists.openwall.com
Subject: [oss-security] CVE request - kernel: infoleak if print-fatal-signals=1
CC: "Steven M. Christey" <coley@linus.mitre.org>

Description from the upstream patch:
When print-fatal-signals is enabled it's possible to dump any memory 
reachable by the kernel to the log by simply jumping to that address 
from user space.

Or crash the system if there's some hardware with read side effects.

The fatal signals handler will dump 16 bytes at the execution address, 
which is fully controlled by ring 3.

In addition when something jumps to an unmapped address there will be up 
to 16 additional useless page faults, which might be potentially slow 
(and at least is not very efficient)

Fortunately this option is off by default and only there on i386.

But fix it by hecking for kernel addresses and also stopping when 
there's a page fault.

References:
http://patchwork.kernel.org/patch/69752/
http://git.kernel.org/linus/b45c6e76bc2c72f6426c14bed64fdcbc9bf37cb0
https://bugzilla.redhat.com/show_bug.cgi?id=554578

Thanks, Eugene
-- 
Eugene Teo / Red Hat Security Response Team

Comment 1 Jeff Mahoney 2010-01-12 20:34:50 UTC

Committed to 11.0, SLE11/11.1, 11.2, and master. Punting to Greg for Moblin.

Comment 2 Greg Kroah-Hartman 2010-01-13 23:58:50 UTC

Checked into MOBLIN_20 and MOBLIN_21 branches, reassigning to security

Comment 3 Ludwig Nussel 2010-01-14 08:51:57 UTC

CVE-2010-0003

Comment 4 Swamp Workflow Management 2010-02-08 13:37:37 UTC

Update released for: kernel-debug, kernel-debug-base, kernel-debug-base-debuginfo, kernel-debug-debuginfo, kernel-debug-debugsource, kernel-debug-devel, kernel-debug-devel-debuginfo, kernel-default, kernel-default-base, kernel-default-base-debuginfo, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-desktop, kernel-desktop-base, kernel-desktop-base-debuginfo, kernel-desktop-debuginfo, kernel-desktop-debugsource, kernel-desktop-devel, kernel-desktop-devel-debuginfo, kernel-pae, kernel-pae-base, kernel-pae-base-debuginfo, kernel-pae-debuginfo, kernel-pae-debugsource, kernel-pae-devel, kernel-pae-devel-debuginfo, kernel-source, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-base-debuginfo, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-vanilla, kernel-vanilla-base, kernel-vanilla-base-debuginfo, kernel-vanilla-debuginfo, kernel-vanilla-debugsource, kernel-vanilla-devel, kernel-vanilla-devel-debuginfo, kernel-xen, kernel-xen-base, kernel-xen-base-debuginfo, kernel-xen-debuginfo, kernel-xen-debugsource, kernel-xen-devel, kernel-xen-devel-debuginfo, preload-kmp-default, preload-kmp-desktop
Products:
openSUSE 11.2 (debug, i586, x86_64)

Comment 5 Swamp Workflow Management 2010-02-11 18:02:42 UTC

Update released for: kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-extra, kernel-source, kernel-source-debuginfo, samsung-atheros-kmp-default
Products:
SUSE-MOBLIN 2.0 (i386)
SUSE-MOBLIN 2.0-DEBUG (i386)
SUSE-MOBLIN-SAMSUNG 2.0 (i386)

Comment 6 Swamp Workflow Management 2010-02-15 12:13:29 UTC

Update released for: acerhk-kmp-debug, acx-kmp-debug, appleir-kmp-debug, at76_usb-kmp-debug, atl2-kmp-debug, aufs-kmp-debug, dazuko-kmp-debug, drbd-kmp-debug, gspcav-kmp-debug, iscsitarget-kmp-debug, ivtv-kmp-debug, kernel-debug, kernel-default, kernel-docs, kernel-kdump, kernel-pae, kernel-ppc64, kernel-ps3, kernel-source, kernel-syms, kernel-vanilla, kernel-xen, kqemu-kmp-debug, nouveau-kmp-debug, omnibook-kmp-debug, pcc-acpi-kmp-debug, pcfclock-kmp-debug, tpctl-kmp-debug, uvcvideo-kmp-debug, virtualbox-ose-kmp-debug, vmware-kmp-debug, wlan-ng-kmp-debug
Products:
openSUSE 11.0 (debug, i386, ppc, x86_64)

Comment 7 Marcus Meissner 2010-02-18 15:19:28 UTC

ok, can close then

Comment 8 Swamp Workflow Management 2010-03-02 16:39:02 UTC

Update released for: kernel-debug, kernel-debug-base, kernel-debug-debuginfo, kernel-debug-debugsource, kernel-debug-extra, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-extra, kernel-docs, kernel-kdump, kernel-kdump-debuginfo, kernel-kdump-debugsource, kernel-pae, kernel-pae-base, kernel-pae-debuginfo, kernel-pae-debugsource, kernel-pae-extra, kernel-ppc64, kernel-ppc64-base, kernel-ppc64-debuginfo, kernel-ppc64-debugsource, kernel-ppc64-extra, kernel-ps3, kernel-ps3-debuginfo, kernel-ps3-debugsource, kernel-source, kernel-source-debuginfo, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-extra, kernel-vanilla, kernel-vanilla-debuginfo, kernel-vanilla-debugsource, kernel-xen, kernel-xen-base, kernel-xen-debuginfo, kernel-xen-debugsource, kernel-xen-extra
Products:
openSUSE 11.1 (debug, i586, ppc, x86_64)

Comment 9 Swamp Workflow Management 2010-03-02 23:09:42 UTC

Update released for: cluster-network-kmp-default, ext4dev-kmp-default, ext4dev-kmp-ppc64, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-extra, kernel-kdump, kernel-kdump-debuginfo, kernel-kdump-debugsource, kernel-ppc64, kernel-ppc64-base, kernel-ppc64-debuginfo, kernel-ppc64-debugsource, kernel-ppc64-extra, kernel-source, kernel-source-debuginfo, kernel-syms
Products:
SLE-DEBUGINFO 11 (ppc64)
SLE-HAE 11 (ppc64)
SLE-SERVER 11 (ppc64)

Comment 10 Marcus Meissner 2010-03-03 13:33:56 UTC

We have released a kernel update for SUSE Linux Enterprise 11 that mentions/fixes this bug. The released version is 2.6.27.45-0.1.1.