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Ticket Resolution Summary Owner Reporter
#15167 wontfix Kernel Address Info Leak wcrobert
Description

I reported this via secalert_us@… and was told to resubmit here:

vbox kernel module seems to printk kernel addresses that get picked up by syslog. This information could be used by someone who has gained uid/gid syslog adm (On Ubuntu) to successfully chain an attack to kernel data structures (thus defeating ASLR). Information from /proc/modules is sanitized for non-root users.

The requested fix is to stop printing out kernel addresses.

Host $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.4 LTS Release: 14.04 Codename: trusty

$uname -a Linux wcrobert-MOBL1 3.19.0-18-generic #18~14.04.1-Ubuntu SMP Wed May 20 09:38:33 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

VBox Version: Version 5.0.14 r105127

What I found in syslog:

Feb 11 11:27:57 wcrobert-MOBL1 kernel: [    5.881847] vboxdrv: Found 4 processor cores
Feb 11 11:27:57 wcrobert-MOBL1 kernel: [    5.901307] vboxdrv: TSC mode is Invariant, tentative frequency 2593993759 Hz
Feb 11 11:27:57 wcrobert-MOBL1 kernel: [    5.901310] vboxdrv: Successfully loaded version 5.0.14 (interface 0x00240000)
Feb 11 11:27:57 wcrobert-MOBL1 kernel: [    6.112417] vboxpci: IOMMU not found (not registered)
Feb 11 12:16:23 wcrobert-MOBL1 kernel: [ 2913.482380] vboxdrv: ffffffffc0000020 VMMR0.r0
Feb 11 12:16:23 wcrobert-MOBL1 kernel: [ 2913.571393] vboxdrv: ffffffffc00fa020 VBoxDDR0.r0
Feb 11 12:16:23 wcrobert-MOBL1 kernel: [ 2913.572892] vboxdrv: ffffffffc0119020 VBoxDD2R0.r0
Feb 11 12:16:23 wcrobert-MOBL1 kernel: [ 2913.606759] vboxdrv: ffffffffc011d020 VBoxEhciR0.r0
#5004 fixed SETHDUUID not working for VHD file types. => fixed in svn wcilley
Description

SETHDUUID not working for VHD file types. In the attached you will see that the command completed, but the vBox disk management still detects the old UUID. Also note that the time/date stamp of the VHD file is not changed by the SETHDUUID command line.

Here is the screen shot. http://home.fuse.net/cilley/2009-09-08_vBox_UUID_not_changed.JPG

Here is the vBox Forum were I explored status before posting defect. http://forums.virtualbox.org/viewtopic.php?f=6&t=17964&p=96762#p96762

Here are the old defects I reviewed before going to Forum. http://www.virtualbox.org/ticket/3443 http://www.virtualbox.org/ticket/4080

#5005 fixed CLONEHD not working for VHD file types. wcilley
Description

CLONEHD not working for VHD file types. In the attached you will see that the command failed on creating the new file. This will also be the case if I do not use the "--format VDI" switch.

Here is the screen shot. http://home.fuse.net/cilley/2009-09-08_vBox_clonehd_not_vhd.JPG

Here is the vBox Forum were I explored status before posting defect. http://forums.virtualbox.org/viewtopic.php?f=6&t=17964&p=96762#p96762

Here are the old defects I reviewed before going to Forum. http://www.virtualbox.org/ticket/3443 http://www.virtualbox.org/ticket/4080

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