Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2017.2549.2
Linux kernel vulnerabilities
12 October 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-14106 CVE-2016-8633
Reference: ESB-2017.1039
ESB-2017.0970
ESB-2017.0468
ESB-2017.0456
Original Bulletin:
http://www.ubuntu.com/usn/usn-3445-1
http://www.ubuntu.com/usn/usn-3445-2
Comment: This bulletin contains two (2) Ubuntu security advisories.
Revision History: October 12 2017: Ubuntu 12.04 ESM updates
October 11 2017: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
==========================================================================
Ubuntu Security Notice USN-3445-1
October 10, 2017
linux vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- - linux: Linux kernel
Details:
Eyal Itkin discovered that the IP over IEEE 1394 (FireWire) implementation
in the Linux kernel contained a buffer overflow when handling fragmented
packets. A remote attacker could use this to possibly execute arbitrary
code with administrative privileges. (CVE-2016-8633)
Andrey Konovalov discovered that a divide-by-zero error existed in the TCP
stack implementation in the Linux kernel. A local attacker could use this
to cause a denial of service (system crash). (CVE-2017-14106)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
linux-image-3.13.0-133-generic 3.13.0-133.182
linux-image-3.13.0-133-generic-lpae 3.13.0-133.182
linux-image-3.13.0-133-lowlatency 3.13.0-133.182
linux-image-3.13.0-133-powerpc-e500 3.13.0-133.182
linux-image-3.13.0-133-powerpc-e500mc 3.13.0-133.182
linux-image-3.13.0-133-powerpc-smp 3.13.0-133.182
linux-image-3.13.0-133-powerpc64-emb 3.13.0-133.182
linux-image-3.13.0-133-powerpc64-smp 3.13.0-133.182
linux-image-generic 3.13.0.133.142
linux-image-generic-lpae 3.13.0.133.142
linux-image-lowlatency 3.13.0.133.142
linux-image-powerpc-e500 3.13.0.133.142
linux-image-powerpc-e500mc 3.13.0.133.142
linux-image-powerpc-smp 3.13.0.133.142
linux-image-powerpc64-emb 3.13.0.133.142
linux-image-powerpc64-smp 3.13.0.133.142
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://www.ubuntu.com/usn/usn-3445-1
CVE-2016-8633, CVE-2017-14106
Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-133.182
==========================================================================
Ubuntu Security Notice USN-3445-2
October 11, 2017
linux vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- - linux: Linux kernel
Details:
USN-3445-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu
12.04 ESM.
Eyal Itkin discovered that the IP over IEEE 1394 (FireWire) implementation
in the Linux kernel contained a buffer overflow when handling fragmented
packets. A remote attacker could use this to possibly execute arbitrary
code with administrative privileges. (CVE-2016-8633)
Andrey Konovalov discovered that a divide-by-zero error existed in the TCP
stack implementation in the Linux kernel. A local attacker could use this
to cause a denial of service (system crash). (CVE-2017-14106)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
linux-image-3.2.0-131-generic 3.2.0-131.177
linux-image-3.2.0-131-generic-pae 3.2.0-131.177
linux-image-3.2.0-131-highbank 3.2.0-131.177
linux-image-3.2.0-131-omap 3.2.0-131.177
linux-image-3.2.0-131-powerpc-smp 3.2.0-131.177
linux-image-3.2.0-131-powerpc64-smp 3.2.0-131.177
linux-image-3.2.0-131-virtual 3.2.0-131.177
linux-image-generic 3.2.0.131.145
linux-image-generic-pae 3.2.0.131.145
linux-image-highbank 3.2.0.131.145
linux-image-omap 3.2.0.131.145
linux-image-powerpc-smp 3.2.0.131.145
linux-image-powerpc64-smp 3.2.0.131.145
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://www.ubuntu.com/usn/usn-3445-2
https://www.ubuntu.com/usn/usn-3445-1
CVE-2016-8633, CVE-2017-14106
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=esSn
-----END PGP SIGNATURE-----