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USN-3082-1: Linux kernel vulnerability

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3082-1


19th September, 2016


linux vulnerability


A security issue affects these releases of Ubuntu and its
derivatives:




  • Ubuntu 12.04 LTS





Summary


The system could be made to run programs as an administrator.





Software description





  • linux
    - Linux kernel







Details


Chiachih Wu, Yuan-Tsung Lo, and Xuxian Jiang discovered that the legacy ABI
for ARM (OABI) had incomplete access checks for epoll_wait(2) and
semtimedop(2). A local attacker could use this to possibly execute
arbitrary code.



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 12.04 LTS:




linux-image-3.2.0-110-generic

3.2.0-110.151






linux-image-3.2.0-110-omap

3.2.0-110.151






linux-image-3.2.0-110-powerpc-smp

3.2.0-110.151






linux-image-3.2.0-110-highbank

3.2.0-110.151






linux-image-3.2.0-110-powerpc64-smp

3.2.0-110.151






linux-image-3.2.0-110-virtual

3.2.0-110.151






linux-image-3.2.0-110-generic-pae

3.2.0-110.151






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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




CVE-2016-3857


USN-3082-2: Linux kernel (OMAP4) vulnerability

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3082-2


19th September, 2016


linux-ti-omap4 vulnerability


A security issue affects these releases of Ubuntu and its
derivatives:




  • Ubuntu 12.04 LTS





Summary


The system could be made to run programs as an administrator.





Software description





  • linux-ti-omap4
    - Linux kernel for OMAP4







Details


Chiachih Wu, Yuan-Tsung Lo, and Xuxian Jiang discovered that the legacy ABI
for ARM (OABI) had incomplete access checks for epoll_wait(2) and
semtimedop(2). A local attacker could use this to possibly execute
arbitrary code.



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 12.04 LTS:




linux-image-3.2.0-1488-omap4

3.2.0-1488.115






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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




CVE-2016-3857


USN-3083-1: Linux kernel vulnerabilities

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3083-1


19th September, 2016


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 kernel.





Software description





  • linux
    - Linux kernel







Details


Dmitry Vyukov discovered that the IPv6 implementation in the Linux kernel
did not properly handle options data, including a use-after-free. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2016-3841)



It was discovered that a race condition existed when handling heartbeat-
timeout events in the SCTP implementation of the Linux kernel. A remote
attacker could use this to cause a denial of service. (CVE-2015-8767)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 14.04 LTS:




linux-image-3.13.0-96-powerpc-smp

3.13.0-96.143






linux-image-3.13.0-96-powerpc-e500mc

3.13.0-96.143






linux-image-3.13.0-96-powerpc64-smp

3.13.0-96.143






linux-image-3.13.0-96-generic

3.13.0-96.143






linux-image-3.13.0-96-generic-lpae

3.13.0-96.143






linux-image-3.13.0-96-powerpc-e500

3.13.0-96.143






linux-image-3.13.0-96-powerpc64-emb

3.13.0-96.143






linux-image-3.13.0-96-lowlatency

3.13.0-96.143






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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




CVE-2015-8767,

CVE-2016-3841


USN-3083-2: Linux kernel (Trusty HWE) vulnerabilities

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3083-2


19th September, 2016


linux-lts-trusty vulnerabilities


A security issue affects these releases of Ubuntu and its
derivatives:




  • Ubuntu 12.04 LTS





Summary


Several security issues were fixed in the kernel.





Software description





  • linux-lts-trusty
    - Linux hardware enablement kernel from Trusty for Precise







Details


USN-3083-1 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 LTS.



Dmitry Vyukov discovered that the IPv6 implementation in the Linux kernel
did not properly handle options data, including a use-after-free. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2016-3841)



It was discovered that a race condition existed when handling heartbeat-
timeout events in the SCTP implementation of the Linux kernel. A remote
attacker could use this to cause a denial of service. (CVE-2015-8767)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 12.04 LTS:




linux-image-3.13.0-96-generic

3.13.0-96.143~precise1






linux-image-3.13.0-96-generic-lpae

3.13.0-96.143~precise1






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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




CVE-2015-8767,

CVE-2016-3841


USN-3084-1: Linux kernel vulnerabilities

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3084-1


19th September, 2016


linux vulnerabilities


A security issue affects these releases of Ubuntu and its
derivatives:




  • Ubuntu 16.04 LTS





Summary


Several security issues were fixed in the kernel.





Software description





  • linux
    - Linux kernel







Details


Pengfei Wang discovered a race condition in the audit subsystem in the
Linux kernel. A local attacker could use this to corrupt audit logs or
disrupt system-call auditing. (CVE-2016-6136)



It was discovered that the powerpc and powerpc64 hypervisor-mode KVM
implementation in the Linux kernel for did not properly maintain state
about transactional memory. An unprivileged attacker in a guest could cause
a denial of service (CPU lockup) in the host OS. (CVE-2016-5412)



Pengfei Wang discovered a race condition in the Chrome OS embedded
controller device driver in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash). (CVE-2016-6156)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 16.04 LTS:




linux-image-4.4.0-38-powerpc64-emb

4.4.0-38.57






linux-image-4.4.0-38-powerpc64-smp

4.4.0-38.57






linux-image-4.4.0-38-generic

4.4.0-38.57






linux-image-4.4.0-38-powerpc-e500mc

4.4.0-38.57






linux-image-4.4.0-38-powerpc-smp

4.4.0-38.57






linux-image-4.4.0-38-lowlatency

4.4.0-38.57






linux-image-4.4.0-38-generic-lpae

4.4.0-38.57






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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




CVE-2016-5412,

CVE-2016-6136,

CVE-2016-6156


USN-3084-2: Linux kernel (Xenial HWE) vulnerabilities

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3084-2


19th September, 2016


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 kernel.





Software description





  • linux-lts-xenial
    - Linux hardware enablement kernel from Xenial for Trusty







Details


USN-3084-1 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.



Pengfei Wang discovered a race condition in the audit subsystem in the
Linux kernel. A local attacker could use this to corrupt audit logs or
disrupt system-call auditing. (CVE-2016-6136)



It was discovered that the powerpc and powerpc64 hypervisor-mode KVM
implementation in the Linux kernel for did not properly maintain state
about transactional memory. An unprivileged attacker in a guest could cause
a denial of service (CPU lockup) in the host OS. (CVE-2016-5412)



Pengfei Wang discovered a race condition in the Chrome OS embedded
controller device driver in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash). (CVE-2016-6156)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 14.04 LTS:




linux-image-4.4.0-38-powerpc64-emb

4.4.0-38.57~14.04.1






linux-image-4.4.0-38-generic

4.4.0-38.57~14.04.1






linux-image-4.4.0-38-powerpc-e500mc

4.4.0-38.57~14.04.1






linux-image-4.4.0-38-powerpc-smp

4.4.0-38.57~14.04.1






linux-image-4.4.0-38-lowlatency

4.4.0-38.57~14.04.1






linux-image-4.4.0-38-generic-lpae

4.4.0-38.57~14.04.1






linux-image-4.4.0-38-powerpc64-smp

4.4.0-38.57~14.04.1






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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




CVE-2016-5412,

CVE-2016-6136,

CVE-2016-6156


USN-3084-3: Linux kernel (Raspberry Pi 2) vulnerabilities

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3084-3


19th September, 2016


linux-raspi2 vulnerabilities


A security issue affects these releases of Ubuntu and its
derivatives:




  • Ubuntu 16.04 LTS





Summary


Several security issues were fixed in the kernel.





Software description





  • linux-raspi2
    - Linux kernel for Raspberry Pi 2







Details


Pengfei Wang discovered a race condition in the audit subsystem in the
Linux kernel. A local attacker could use this to corrupt audit logs or
disrupt system-call auditing. (CVE-2016-6136)



It was discovered that the powerpc and powerpc64 hypervisor-mode KVM
implementation in the Linux kernel for did not properly maintain state
about transactional memory. An unprivileged attacker in a guest could cause
a denial of service (CPU lockup) in the host OS. (CVE-2016-5412)



Pengfei Wang discovered a race condition in the Chrome OS embedded
controller device driver in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash). (CVE-2016-6156)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 16.04 LTS:




linux-image-4.4.0-1023-raspi2

4.4.0-1023.29






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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




CVE-2016-5412,

CVE-2016-6136,

CVE-2016-6156


USN-3084-4: Linux kernel (Qualcomm Snapdragon) vulnerabilities

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3084-4


19th September, 2016


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 kernel.





Software description





  • linux-snapdragon
    - Linux kernel for Snapdragon Processors







Details


Pengfei Wang discovered a race condition in the audit subsystem in the
Linux kernel. A local attacker could use this to corrupt audit logs or
disrupt system-call auditing. (CVE-2016-6136)



It was discovered that the powerpc and powerpc64 hypervisor-mode KVM
implementation in the Linux kernel for did not properly maintain state
about transactional memory. An unprivileged attacker in a guest could cause
a denial of service (CPU lockup) in the host OS. (CVE-2016-5412)



Pengfei Wang discovered a race condition in the Chrome OS embedded
controller device driver in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash). (CVE-2016-6156)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 16.04 LTS:




linux-image-4.4.0-1026-snapdragon

4.4.0-1026.29






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


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




CVE-2016-5412,

CVE-2016-6136,

CVE-2016-6156


USN-3085-1: GDK-PixBuf vulnerabilities

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3085-1


21st September, 2016


gdk-pixbuf vulnerabilities


A security issue affects these releases of Ubuntu and its
derivatives:




  • Ubuntu 16.04 LTS


  • Ubuntu 14.04 LTS


  • Ubuntu 12.04 LTS





Summary


GDK-PixBuf could be made to crash or run programs as your login if it opened a specially crafted file.





Software description





  • gdk-pixbuf
    - GDK-Pixbuf library











Details


It was discovered that the GDK-PixBuf library did not properly handle specially
crafted bmp images, leading to a heap-based buffer overflow. If a user or
automated system were tricked into opening a specially crafted bmp file, a
remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting
in a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-7552)



It was discovered that the GDK-PixBuf library contained an integer overflow
when handling certain images. If a user or automated system were tricked into
opening a crafted image file, a remote attacker could use this flaw to cause
GDK-PixBuf to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8875)



Franco Costantini discovered that the GDK-PixBuf library contained an
out-of-bounds write error when parsing an ico file. If a user or automated
system were tricked into opening a crafted ico file, a remote attacker could
use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service.
This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6352)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 16.04 LTS:




libgdk-pixbuf2.0-0

2.32.2-1ubuntu1.2





Ubuntu 14.04 LTS:




libgdk-pixbuf2.0-0

2.30.7-0ubuntu1.6





Ubuntu 12.04 LTS:




libgdk-pixbuf2.0-0

2.26.1-1ubuntu1.5






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


After a standard system update you need to restart your session to make
all the necessary changes.





References




CVE-2015-7552,

CVE-2015-8875,

CVE-2016-6352


USN-3086-1: Irssi vulnerabilities

2016/9/24 4:42:54 | Ubuntu security notices

Ubuntu Security Notice USN-3086-1


21st September, 2016


irssi vulnerabilities


A security issue affects these releases of Ubuntu and its
derivatives:




  • Ubuntu 16.04 LTS





Summary


Irssi could be made to crash if it received specially crafted network
traffic.





Software description





  • irssi
    - terminal based IRC client







Details


Gabriel Campana and Adrien Guinet discovered that the format parsing code
in Irssi did not properly verify 24bit color codes. A remote attacker could
use this to cause a denial of service (application crash). (CVE-2016-7044)



Gabriel Campana and Adrien Guinet discovered that a buffer overflow existed
in the format parsing code in Irssi. A remote attacker could use this to
cause a denial of service (application crash). (CVE-2016-7045)



Update instructions


The problem can be corrected by updating your system to the following
package version:




Ubuntu 16.04 LTS:




irssi

0.8.19-1ubuntu1.2






To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.


After a standard system update you need to restart Irssi to make
all the necessary changes.





References




CVE-2016-7044,

CVE-2016-7045