Ubuntu Security Notice USN-2808-1

10th November, 2015

wpa vulnerabilities

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

• Ubuntu 15.10
• Ubuntu 15.04
• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in wpa_supplicant and hostapd.

Software description

• wpa
  – client support for WPA and WPA2

Details

It was discovered that wpa_supplicant incorrectly handled WMM Sleep Mode
Response frame processing. A remote attacker could use this issue to
perform broadcast/multicast packet injections, or cause a denial of
service. (CVE-2015-5310)

It was discovered that wpa_supplicant and hostapd incorrectly handled
certain EAP-pwd messages. A remote attacker could use this issue to cause a
denial of service. (CVE-2015-5314, CVE-2015-5315)

It was discovered that wpa_supplicant incorrectly handled certain EAP-pwd
Confirm messages. A remote attacker could use this issue to cause a
denial of service. This issue only applied to Ubuntu 15.10. (CVE-2015-5316)

Update instructions

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

Ubuntu 15.10:

hostapd

2.4-0ubuntu3.2

wpasupplicant

2.4-0ubuntu3.2

Ubuntu 15.04:

hostapd

2.1-0ubuntu7.3

wpasupplicant

2.1-0ubuntu7.3

Ubuntu 14.04 LTS:

hostapd

2.1-0ubuntu1.4

wpasupplicant

2.1-0ubuntu1.4

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.

References

CVE-2015-5310,

CVE-2015-5314,

CVE-2015-5315,

CVE-2015-5316

Ubuntu Security Notice USN-2800-1

9th November, 2015

linux vulnerability

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

• Ubuntu 12.04 LTS

Summary

The system could be made to crash under certain conditions.

Software description

• linux
  – Linux kernel

Details

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

Update instructions

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

Ubuntu 12.04 LTS:

linux-image-3.2.0-94-omap

3.2.0-94.134

linux-image-3.2.0-94-powerpc-smp

3.2.0-94.134

linux-image-3.2.0-94-highbank

3.2.0-94.134

linux-image-3.2.0-94-powerpc64-smp

3.2.0-94.134

linux-image-3.2.0-94-generic-pae

3.2.0-94.134

linux-image-3.2.0-94-virtual

3.2.0-94.134

linux-image-3.2.0-94-generic

3.2.0-94.134

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2015-5307

Ubuntu Security Notice USN-2788-2

9th November, 2015

unzip regression

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

• Ubuntu 15.10
• Ubuntu 15.04
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

USN-2788-1 introduced a regression in unzip.

Software description

• unzip
  – De-archiver for .zip files

Details

USN-2788-1 fixed vulnerabilities in unzip. One of the security patches
caused a regression when extracting 0-byte files. This update fixes the
problem.

We apologize for the inconvenience.

Original advisory details:

Gustavo Grieco discovered that unzip incorrectly handled certain password
protected archives. If a user or automated system were tricked into
processing a specially crafted zip archive, an attacker could possibly
execute arbitrary code. (CVE-2015-7696)

Gustavo Grieco discovered that unzip incorrectly handled certain malformed
archives. If a user or automated system were tricked into processing a
specially crafted zip archive, an attacker could possibly cause unzip to
hang, resulting in a denial of service. (CVE-2015-7697)

Update instructions

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

Ubuntu 15.10:

unzip

6.0-17ubuntu1.2

Ubuntu 15.04:

unzip

6.0-13ubuntu3.2

Ubuntu 14.04 LTS:

unzip

6.0-9ubuntu1.5

Ubuntu 12.04 LTS:

unzip

6.0-4ubuntu2.5

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

In general, a standard system update will make all the necessary changes.

References

LP: 1513293

Ubuntu Security Notice USN-2803-1

9th November, 2015

linux vulnerability

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

• Ubuntu 15.10

Summary

The system could be made to crash under certain conditions.

Software description

• linux
  – Linux kernel

Details

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

Update instructions

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

Ubuntu 15.10:

linux-image-4.2.0-18-lowlatency

4.2.0-18.22

linux-image-4.2.0-18-generic-lpae

4.2.0-18.22

linux-image-4.2.0-18-powerpc64-emb

4.2.0-18.22

linux-image-4.2.0-18-generic

4.2.0-18.22

linux-image-4.2.0-18-powerpc-e500mc

4.2.0-18.22

linux-image-4.2.0-18-powerpc64-smp

4.2.0-18.22

linux-image-4.2.0-18-powerpc-smp

4.2.0-18.22

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2015-5307

Ubuntu Security Notice USN-2802-1

9th November, 2015

linux vulnerability

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

• Ubuntu 15.04

Summary

The system could be made to crash under certain conditions.

Software description

• linux
  – Linux kernel

Details

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

Update instructions

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

Ubuntu 15.04:

linux-image-3.19.0-33-powerpc-smp

3.19.0-33.38

linux-image-3.19.0-33-powerpc-e500mc

3.19.0-33.38

linux-image-3.19.0-33-generic-lpae

3.19.0-33.38

linux-image-3.19.0-33-generic

3.19.0-33.38

linux-image-3.19.0-33-powerpc64-smp

3.19.0-33.38

linux-image-3.19.0-33-lowlatency

3.19.0-33.38

linux-image-3.19.0-33-powerpc64-emb

3.19.0-33.38

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2015-5307

Ubuntu Security Notice USN-2801-1

9th November, 2015

linux vulnerability

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

• Ubuntu 14.04 LTS

Summary

The system could be made to crash under certain conditions.

Software description

• linux
  – Linux kernel

Details

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

Update instructions

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

Ubuntu 14.04 LTS:

linux-image-3.13.0-68-powerpc64-emb

3.13.0-68.111

linux-image-3.13.0-68-generic-lpae

3.13.0-68.111

linux-image-3.13.0-68-powerpc-e500mc

3.13.0-68.111

linux-image-3.13.0-68-lowlatency

3.13.0-68.111

linux-image-3.13.0-68-powerpc64-smp

3.13.0-68.111

linux-image-3.13.0-68-generic

3.13.0-68.111

linux-image-3.13.0-68-powerpc-smp

3.13.0-68.111

linux-image-3.13.0-68-powerpc-e500

3.13.0-68.111

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2015-5307

Ubuntu Security Notice USN-2804-1

9th November, 2015

linux-lts-trusty vulnerability

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

• Ubuntu 12.04 LTS

Summary

The system could be made to crash under certain conditions.

Software description

• linux-lts-trusty
  – Linux hardware enablement kernel from Trusty

Details

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

Update instructions

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

Ubuntu 12.04 LTS:

linux-image-3.13.0-68-generic

3.13.0-68.111~precise1

linux-image-3.13.0-68-generic-lpae

3.13.0-68.111~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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2015-5307

Ubuntu Security Notice USN-2806-1

9th November, 2015

linux-lts-vivid vulnerability

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

• Ubuntu 14.04 LTS

Summary

The system could be made to crash under certain conditions.

Software description

• linux-lts-vivid
  – Linux hardware enablement kernel from Vivid

Details

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

Update instructions

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

Ubuntu 14.04 LTS:

linux-image-3.19.0-33-powerpc-smp

3.19.0-33.38~14.04.1

linux-image-3.19.0-33-powerpc-e500mc

3.19.0-33.38~14.04.1

linux-image-3.19.0-33-generic-lpae

3.19.0-33.38~14.04.1

linux-image-3.19.0-33-generic

3.19.0-33.38~14.04.1

linux-image-3.19.0-33-powerpc64-smp

3.19.0-33.38~14.04.1

linux-image-3.19.0-33-lowlatency

3.19.0-33.38~14.04.1

linux-image-3.19.0-33-powerpc64-emb

3.19.0-33.38~14.04.1

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2015-5307

Ubuntu Security Notice USN-2805-1

9th November, 2015

linux-lts-utopic vulnerability

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

• Ubuntu 14.04 LTS

Summary

The system could be made to crash under certain conditions.

Software description

• linux-lts-utopic
  – Linux hardware enablement kernel from Utopic

Details

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux
kernel did not properly catch Alignment Check exceptions. An attacker in a
guest virtual machine could use this to cause a denial of service (system
crash) in the host OS.

Update instructions

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

Ubuntu 14.04 LTS:

linux-image-3.16.0-53-powerpc64-emb

3.16.0-53.72~14.04.1

linux-image-3.16.0-53-generic-lpae

3.16.0-53.72~14.04.1

linux-image-3.16.0-53-powerpc64-smp

3.16.0-53.72~14.04.1

linux-image-3.16.0-53-generic

3.16.0-53.72~14.04.1

linux-image-3.16.0-53-powerpc-smp

3.16.0-53.72~14.04.1

linux-image-3.16.0-53-powerpc-e500mc

3.16.0-53.72~14.04.1

linux-image-3.16.0-53-lowlatency

3.16.0-53.72~14.04.1

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2015-5307

Ubuntu Security Notice USN-2792-1

4th November, 2015

linux 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
  – Linux kernel

Details

Dmitry Vyukov discovered that the Linux kernel did not properly initialize
IPC object state in certain situations. A local attacker could use this to
escalate their privileges, expose confidential information, or cause a
denial of service (system crash). (CVE-2015-7613)

It was discovered that the Linux kernel did not check if a new IPv6 MTU set
by a user space application was valid. A remote attacker could forge a
route advertisement with an invalid MTU that a user space daemon like
NetworkManager would honor and apply to the kernel, causing a denial of
service. (CVE-2015-0272)

It was discovered that in certain situations, a directory could be renamed
outside of a bind mounted location. An attacker could use this to escape
bind mount containment and gain access to sensitive information.
(CVE-2015-2925)

Moein Ghasemzadeh discovered that the USB WhiteHEAT serial driver contained
hardcoded attributes about the USB devices. An attacker could construct a
fake WhiteHEAT USB device that, when inserted, causes a denial of service
(system crash). (CVE-2015-5257)

Update instructions

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

Ubuntu 12.04 LTS:

linux-image-3.2.0-93-omap

3.2.0-93.133

linux-image-3.2.0-93-generic

3.2.0-93.133

linux-image-3.2.0-93-powerpc-smp

3.2.0-93.133

linux-image-3.2.0-93-powerpc64-smp

3.2.0-93.133

linux-image-3.2.0-93-virtual

3.2.0-93.133

linux-image-3.2.0-93-generic-pae

3.2.0-93.133

linux-image-3.2.0-93-highbank

3.2.0-93.133

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2015-0272,

CVE-2015-2925,

CVE-2015-5257,

CVE-2015-7613