Bug 13395

Summary:	Update request: kernel-rt-3.12.20-0.rt30.1.mga4
Product:	Mageia	Reporter:	Thomas Backlund <tmb>
Component:	Security	Assignee:	QA Team <qa-bugs>
Status:	RESOLVED FIXED	QA Contact:	Sec team <security>
Severity:	critical
Priority:	Normal	CC:	sysadmin-bugs, wilcal.int
Version:	4	Keywords:	validated_update
Target Milestone:	---
Hardware:	All
OS:	Linux
Whiteboard:	has_procedure advisory mga4-32-ok mga4-64-ok
Source RPM:	kernel-rt-3.12.20-0.rt30.1.mga4.src.rpm	CVE:
Status comment:

Description Thomas Backlund 2014-05-17 01:42:10 CEST

SRPM:
kernel-rt-3.12.20-0.rt30.1.mga4.src.rpm


i586:
kernel-rt-3.12.20-0.rt30.1.mga4-1-1.mga4.i586.rpm
kernel-rt-devel-3.12.20-0.rt30.1.mga4-1-1.mga4.i586.rpm
kernel-rt-devel-latest-3.12.20-0.rt30.1.mga4.i586.rpm
kernel-rt-doc-3.12.20-0.rt30.1.mga4.noarch.rpm
kernel-rt-latest-3.12.20-0.rt30.1.mga4.i586.rpm
kernel-rt-source-3.12.20-0.rt30.1.mga4-1-1.mga4.noarch.rpm
kernel-rt-source-latest-3.12.20-0.rt30.1.mga4.noarch.rpm


x86_64:
kernel-rt-3.12.20-0.rt30.1.mga4-1-1.mga4.x86_64.rpm
kernel-rt-devel-3.12.20-0.rt30.1.mga4-1-1.mga4.x86_64.rpm
kernel-rt-devel-latest-3.12.20-0.rt30.1.mga4.x86_64.rpm
kernel-rt-doc-3.12.20-0.rt30.1.mga4.noarch.rpm
kernel-rt-latest-3.12.20-0.rt30.1.mga4.x86_64.rpm
kernel-rt-source-3.12.20-0.rt30.1.mga4-1-1.mga4.noarch.rpm
kernel-rt-source-latest-3.12.20-0.rt30.1.mga4.noarch.rpm


Advisory:
Updated kernel-rt provides upstream 3.12.20 kernel and fixes the
following security issues:

The ioapic_deliver function in virt/kvm/ioapic.c in the Linux kernel
through 3.14.1 does not properly validate the kvm_irq_delivery_to_apic
return value, which allows guest OS users to cause a denial of service
(host OS crash) via a crafted entry in the redirection table of an I/O
APIC. NOTE: the affected code was moved to the ioapic_service function
before the vulnerability was announced. (CVE-2014-0155)

The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel
through 3.14.3 does not properly manage tty driver access in the
"LECHO & !OPOST" case, which allows local users to cause a denial of
service (memory corruption and system crash) or gain privileges by
triggering a race condition involving read and write operations with
long strings. (CVE-2014-0196)

The raw_cmd_copyin function in drivers/block/floppy.c in the Linux
kernel through 3.14.3 does not properly handle error conditions during
processing of an FDRAWCMD ioctl call, which allows local users to trigger
kfree operations and gain privileges by leveraging write access to a
/dev/fd device.  (CVE-2014-1737)

The raw_cmd_copyout function in drivers/block/floppy.c in the Linux
kernel through 3.14.3 does not properly restrict access to certain
pointers during processing of an FDRAWCMD ioctl call, which allows
local users to obtain sensitive information from kernel heap memory
by leveraging write access to a /dev/fd device. (CVE-2014-1738)

The -rt patch has been updated to rt30.

For other fixes, see the referenced changelogs.

References:
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.20
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.19


Reproducible: 

Steps to Reproduce:

Comment 1 claire robinson 2014-05-17 17:57:01 CEST

PoC: https://bugzilla.novell.com/show_bug.cgi?id=875690#c14

Whiteboard: (none) => has_procedure

Comment 2 William Kenney 2014-05-17 22:29:18 CEST

On real hardware, M4, KDE, 32-bit

Package(s) under test:
kernel-rt

default install of kernel-rt

[wilcal@localhost ~]$ uname -a
Linux localhost 3.12.18-0.rt25.1.mga4 #1 SMP PREEMPT RT Thu Apr 24 16:27:21 UTC 2014 i686 i686 i686 GNU/Linux

kernel-rt boots to a working desktop and applications work fine

install kernel-rt from updates_testing

[wilcal@localhost ~]$ uname -a
Linux localhost 3.12.20-0.rt30.1.mga4 #1 SMP PREEMPT RT Fri May 16 16:22:42 UTC 2014 i686 i686 i686 GNU/Linux

kernel-rt boots to a working desktop and applications work fine

Test platform:
Intel, P4 530J 3.0 GHz, 800MHz FSB, 1MB L2, LGA 775
GigaByte  GA-81915G Pro F4  i915G  LGA 775  MoBo
 Marvel Yukon 88E8001 Gigabit LAN
 Intel High Def Audio, Azalia (C-Media 9880) (snd-hda-intel)
 Intel Graphics Media Accelerator 900 (Intel 82915G)
Kingston 4GB (2 x 2GB) DDR400 PC-3200
250GB Seagate
Kingwin KF-91-BK SATA Mobile Rack
Kingwin KF-91-T-BK SATA Mobile Rack Tray
Sony CD/DVD-RW DWQ120AB2

CC: (none) => wilcal.int

Comment 3 claire robinson 2014-05-18 10:59:16 CEST

Tested OK mga4 32

Comment 4 claire robinson 2014-05-18 11:21:52 CEST

Testing mga4 64

broadcom-wl (6.30.223.141-2.mga4.nonfree): Installing module.
...............
.......
fglrx (13.251-1.mga4.nonfree): Installing module.
...........
.......
nvidia-current (331.49-1.mga4.nonfree): Installing module.
.......(bad exit status: 10)
  Build failed.  Installation skipped.


I'm not sure if this is due to previous problems or a generic build error.

Comment 5 claire robinson 2014-05-18 11:24:59 CEST

Sorry, kernel confusion, the above was with 3.12.18 before installing the update. Testing the update now.

Comment 6 Thomas Backlund 2014-05-18 11:26:50 CEST

Yep, it's the nvidia-current driver checking for PREEMPT kernel and bailing out, so same issue as earlier

Comment 7 claire robinson 2014-05-18 11:30:03 CEST

I was just posting the same thing, remembered as I was rebooting. Proprietary nvidia doesn't support realtime kernels, so it's expected.

mga4 64 ok

Comment 8 William Kenney 2014-05-18 18:12:11 CEST

On real hardware, M4, KDE, 64-bit

Package(s) under test:
kernel-rt

default install of kernel-rt

[wilcal@localhost ~]$ uname -a
Linux localhost 3.12.18-0.rt25.1.mga4 #1 SMP PREEMPT RT Thu Apr 24 16:44:35 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

kernel-rt to a working desktop and applications work fine

install kernel-rt from updates_testing

[wilcal@localhost ~]$ uname -a
Linux localhost 3.12.20-0.rt30.1.mga4 #1 SMP PREEMPT RT Fri May 16 16:33:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

kernel-rt boots to a working desktop and applications work fine

Test platform:
Intel Core i7-2600K Sandy Bridge 3.4GHz
GIGABYTE GA-Z68X-UD3-B3 LGA 1155 MoBo
GIGABYTE GV-N440D3-1GI Nvidia GeForce GT 440 (Fermi) 1GB
RTL8111/8168B PCI Express 1Gbit Ethernet
DRAM 16GB (4 x 4GB)
Mageia 4 64-bit, nouveau driver

Comment 9 William Kenney 2014-05-18 23:54:57 CEST

In VirtualBox, M4, KDE, 32-bit

Package(s) under test:
kernel-rt

default install of kernel-rt

[wilcal@localhost ~]$ uname -a
Linux localhost 3.12.18-0.rt25.1.mga4 #1 SMP PREEMPT RT Thu Apr 24 16:27:21 UTC 2014 i686 i686 i686 GNU/Linux

kernel-rt to a working desktop and applications work fine

install kernel-rt from updates_testing

[wilcal@localhost ~]$ uname -a
Linux localhost 3.12.20-0.rt30.1.mga4 #1 SMP PREEMPT RT Fri May 16 16:22:42 UTC 2014 i686 i686 i686 GNU/Linux

kernel-rt boots to a working desktop and applications work fine

Test platform:
Intel Core i7-2600K Sandy Bridge 3.4GHz
GIGABYTE GA-Z68X-UD3-B3 LGA 1155 MoBo
GIGABYTE GV-N440D3-1GI Nvidia GeForce GT 440 (Fermi) 1GB
RTL8111/8168B PCI Express 1Gbit Ethernet
DRAM 16GB (4 x 4GB)
Mageia 4 64-bit, nouveau driver

Comment 10 William Kenney 2014-05-18 23:55:10 CEST

In VirtualBox, M4, KDE, 64-bit

Package(s) under test:
kernel-rt

default install of kernel-rt

[wilcal@localhost ~]$ uname -a
Linux localhost 3.12.18-0.rt25.1.mga4 #1 SMP PREEMPT RT Thu Apr 24 16:44:35 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

kernel-rt to a working desktop and applications work fine

install kernel-rt from updates_testing

[wilcal@localhost ~]$ uname -a
Linux localhost 3.12.20-0.rt30.1.mga4 #1 SMP PREEMPT RT Fri May 16 16:33:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

kernel-rt boots to a working desktop and applications work fine

Test platform:
Intel Core i7-2600K Sandy Bridge 3.4GHz
GIGABYTE GA-Z68X-UD3-B3 LGA 1155 MoBo
GIGABYTE GV-N440D3-1GI Nvidia GeForce GT 440 (Fermi) 1GB
RTL8111/8168B PCI Express 1Gbit Ethernet
DRAM 16GB (4 x 4GB)
Mageia 4 64-bit, nouveau driver

Comment 11 claire robinson 2014-05-19 18:54:05 CEST

Advisory uploaded. Validating.

Could sysadmin please push to 4 updates.

Thanks

Keywords: (none) => validated_update
Whiteboard: has_procedure => has_procedure advisory mga4-32-ok mga4-64-ok
CC: (none) => sysadmin-bugs

Comment 12 Thomas Backlund 2014-05-19 21:03:40 CEST

Update pushed:
http://advisories.mageia.org/MGASA-2014-0227.html

Status: NEW => RESOLVED
Resolution: (none) => FIXED