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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2017.2979
Linux kernel vulnerabilities
22 November 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: linux
linux-aws
linux-gke
linux-kvm
linux-raspi2
linux-snapdragon
linux-lts-xenial
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Root Compromise -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-16535 CVE-2017-16534 CVE-2017-16533
CVE-2017-16531 CVE-2017-16530 CVE-2017-16529
CVE-2017-16527 CVE-2017-16526 CVE-2017-16525
CVE-2017-15951 CVE-2017-15649 CVE-2017-15299
CVE-2017-15265
Reference: ESB-2017.2700
ESB-2017.2807
Original Bulletin:
http://www.ubuntu.com/usn/usn-3485-1
http://www.ubuntu.com/usn/usn-3485-2
http://www.ubuntu.com/usn/usn-3485-3
Comment: This bulletin contains three (3) Ubuntu security advisories.
All advisories pertain to the same bugfixes for different kernels.
This advisory references vulnerabilities in the Linux kernel that
also affect distributions other than Ubuntu. It is recommended that
administrators running Linux check for an updated version of the
kernel for their system.
- --------------------------BEGIN INCLUDED TEXT--------------------
==========================================================================
Ubuntu Security Notice USN-3485-1
November 21, 2017
linux, linux-aws, linux-gke, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- - linux: Linux kernel
- - linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- - linux-gke: Linux kernel for Google Container Engine (GKE) systems
- - linux-kvm: Linux kernel for cloud environments
- - linux-raspi2: Linux kernel for Raspberry Pi 2
- - linux-snapdragon: Linux kernel for Snapdragon processors
Details:
It was discovered that a race condition existed in the ALSA subsystem of
the Linux kernel when creating and deleting a port via ioctl(). A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-15265)
Eric Biggers discovered that the key management subsystem in the Linux
kernel did not properly restrict adding a key that already exists but is
uninstantiated. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2017-15299)
It was discovered that a race condition existed in the packet fanout
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-15649)
Eric Biggers discovered a race condition in the key management subsystem of
the Linux kernel around keys in a negative state. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-15951)
Andrey Konovalov discovered a use-after-free vulnerability in the USB
serial console driver in the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2017-16525)
Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux
kernel did not properly check for an error condition. A physically
proximate attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2017-16526)
Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-16527)
Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did
not properly validate USB audio buffer descriptors. A physically proximate
attacker could use this cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-16529)
Andrey Konovalov discovered that the USB unattached storage driver in the
Linux kernel contained out-of-bounds error when handling alternative
settings. A physically proximate attacker could use to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2017-16530)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB interface association descriptors. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-16531)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB HID descriptors. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2017-16533)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate CDC metadata. A physically proximate attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-16534)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB BOS metadata. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2017-16535)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS:
linux-image-4.4.0-101-generic 4.4.0-101.124
linux-image-4.4.0-101-generic-lpae 4.4.0-101.124
linux-image-4.4.0-101-lowlatency 4.4.0-101.124
linux-image-4.4.0-101-powerpc-e500mc 4.4.0-101.124
linux-image-4.4.0-101-powerpc-smp 4.4.0-101.124
linux-image-4.4.0-101-powerpc64-emb 4.4.0-101.124
linux-image-4.4.0-101-powerpc64-smp 4.4.0-101.124
linux-image-4.4.0-1010-kvm 4.4.0-1010.15
linux-image-4.4.0-1034-gke 4.4.0-1034.34
linux-image-4.4.0-1041-aws 4.4.0-1041.50
linux-image-4.4.0-1077-raspi2 4.4.0-1077.85
linux-image-4.4.0-1079-snapdragon 4.4.0-1079.84
linux-image-aws 4.4.0.1041.43
linux-image-generic 4.4.0.101.106
linux-image-generic-lpae 4.4.0.101.106
linux-image-gke 4.4.0.1034.35
linux-image-kvm 4.4.0.1010.10
linux-image-lowlatency 4.4.0.101.106
linux-image-powerpc-e500mc 4.4.0.101.106
linux-image-powerpc-smp 4.4.0.101.106
linux-image-powerpc64-emb 4.4.0.101.106
linux-image-powerpc64-smp 4.4.0.101.106
linux-image-raspi2 4.4.0.1077.77
linux-image-snapdragon 4.4.0.1079.71
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-3485-1
CVE-2017-15265, CVE-2017-15299, CVE-2017-15649, CVE-2017-15951,
CVE-2017-16525, CVE-2017-16526, CVE-2017-16527, CVE-2017-16529,
CVE-2017-16530, CVE-2017-16531, CVE-2017-16533, CVE-2017-16534,
CVE-2017-16535
Package Information:
https://launchpad.net/ubuntu/+source/linux/4.4.0-101.124
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1041.50
https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1034.34
https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1010.15
https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1077.85
https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1079.84
==========================================================================
Ubuntu Security Notice USN-3485-2
November 21, 2017
linux-lts-xenial 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-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty
Details:
USN-3485-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.
It was discovered that a race condition existed in the ALSA subsystem of
the Linux kernel when creating and deleting a port via ioctl(). A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-15265)
Eric Biggers discovered that the key management subsystem in the Linux
kernel did not properly restrict adding a key that already exists but is
uninstantiated. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2017-15299)
It was discovered that a race condition existed in the packet fanout
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-15649)
Eric Biggers discovered a race condition in the key management subsystem of
the Linux kernel around keys in a negative state. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-15951)
Andrey Konovalov discovered a use-after-free vulnerability in the USB
serial console driver in the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2017-16525)
Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux
kernel did not properly check for an error condition. A physically
proximate attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2017-16526)
Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-16527)
Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did
not properly validate USB audio buffer descriptors. A physically proximate
attacker could use this cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-16529)
Andrey Konovalov discovered that the USB unattached storage driver in the
Linux kernel contained out-of-bounds error when handling alternative
settings. A physically proximate attacker could use to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2017-16530)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB interface association descriptors. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-16531)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB HID descriptors. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2017-16533)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate CDC metadata. A physically proximate attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-16534)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB BOS metadata. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2017-16535)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
linux-image-4.4.0-101-generic 4.4.0-101.124~14.04.1
linux-image-4.4.0-101-generic-lpae 4.4.0-101.124~14.04.1
linux-image-4.4.0-101-lowlatency 4.4.0-101.124~14.04.1
linux-image-4.4.0-101-powerpc-e500mc 4.4.0-101.124~14.04.1
linux-image-4.4.0-101-powerpc-smp 4.4.0-101.124~14.04.1
linux-image-4.4.0-101-powerpc64-emb 4.4.0-101.124~14.04.1
linux-image-4.4.0-101-powerpc64-smp 4.4.0-101.124~14.04.1
linux-image-generic-lpae-lts-xenial 4.4.0.101.84
linux-image-generic-lts-xenial 4.4.0.101.84
linux-image-lowlatency-lts-xenial 4.4.0.101.84
linux-image-powerpc-e500mc-lts-xenial 4.4.0.101.84
linux-image-powerpc-smp-lts-xenial 4.4.0.101.84
linux-image-powerpc64-emb-lts-xenial 4.4.0.101.84
linux-image-powerpc64-smp-lts-xenial 4.4.0.101.84
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-3485-2
https://www.ubuntu.com/usn/usn-3485-1
CVE-2017-15265, CVE-2017-15299, CVE-2017-15649, CVE-2017-15951,
CVE-2017-16525, CVE-2017-16526, CVE-2017-16527, CVE-2017-16529,
CVE-2017-16530, CVE-2017-16531, CVE-2017-16533, CVE-2017-16534,
CVE-2017-16535
Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-xenial/4.4.0-101.124~14.04.1
==========================================================================
Ubuntu Security Notice USN-3485-3
November 21, 2017
linux-aws 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-aws: Linux kernel for Amazon Web Services (AWS) systems
Details:
It was discovered that a race condition existed in the ALSA subsystem of
the Linux kernel when creating and deleting a port via ioctl(). A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-15265)
Eric Biggers discovered that the key management subsystem in the Linux
kernel did not properly restrict adding a key that already exists but is
uninstantiated. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2017-15299)
It was discovered that a race condition existed in the packet fanout
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-15649)
Eric Biggers discovered a race condition in the key management subsystem of
the Linux kernel around keys in a negative state. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-15951)
Andrey Konovalov discovered a use-after-free vulnerability in the USB
serial console driver in the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2017-16525)
Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux
kernel did not properly check for an error condition. A physically
proximate attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2017-16526)
Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2017-16527)
Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did
not properly validate USB audio buffer descriptors. A physically proximate
attacker could use this cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-16529)
Andrey Konovalov discovered that the USB unattached storage driver in the
Linux kernel contained out-of-bounds error when handling alternative
settings. A physically proximate attacker could use to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2017-16530)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB interface association descriptors. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-16531)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB HID descriptors. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2017-16533)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate CDC metadata. A physically proximate attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-16534)
Andrey Konovalov discovered that the USB subsystem in the Linux kernel did
not properly validate USB BOS metadata. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2017-16535)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
linux-image-4.4.0-1003-aws 4.4.0-1003.3
linux-image-aws 4.4.0.1003.3
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-3485-3
https://www.ubuntu.com/usn/usn-3485-1
CVE-2017-15265, CVE-2017-15299, CVE-2017-15649, CVE-2017-15951,
CVE-2017-16525, CVE-2017-16526, CVE-2017-16527, CVE-2017-16529,
CVE-2017-16530, CVE-2017-16531, CVE-2017-16533, CVE-2017-16534,
CVE-2017-16535
Package Information:
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1003.3
- --------------------------END INCLUDED TEXT--------------------
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