==========================================================================
Ubuntu Security Notice USN-2752-1
September 29, 2015
linux vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 15.04
Summary:
Several security issues were fixed in the kernel.
Software Description:
– linux: Linux kernel
Details:
Benjamin Randazzo discovered an information leak in the md (multiple
device) driver when the bitmap_info.file is disabled. A local privileged
attacker could use this to obtain sensitive information from the kernel.
(CVE-2015-5697)
Marc-Andr� Lureau discovered that the vhost driver did not properly
release the userspace provided log file descriptor. A privileged attacker
could use this to cause a denial of service (resource exhaustion).
(CVE-2015-6252)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.04:
linux-image-3.19.0-30-generic 3.19.0-30.33
linux-image-3.19.0-30-generic-lpae 3.19.0-30.33
linux-image-3.19.0-30-lowlatency 3.19.0-30.33
linux-image-3.19.0-30-powerpc-e500mc 3.19.0-30.33
linux-image-3.19.0-30-powerpc-smp 3.19.0-30.33
linux-image-3.19.0-30-powerpc64-emb 3.19.0-30.33
linux-image-3.19.0-30-powerpc64-smp 3.19.0-30.33
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:
http://www.ubuntu.com/usn/usn-2752-1
CVE-2015-5697, CVE-2015-6252
Package Information:
https://launchpad.net/ubuntu/+source/linux/3.19.0-30.33
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==========================================================================
Ubuntu Security Notice USN-2751-1
September 29, 2015
linux-lts-vivid 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-vivid: Linux hardware enablement kernel from Vivid
Details:
Benjamin Randazzo discovered an information leak in the md (multiple
device) driver when the bitmap_info.file is disabled. A local privileged
attacker could use this to obtain sensitive information from the kernel.
(CVE-2015-5697)
Marc-Andr� Lureau discovered that the vhost driver did not properly
release the userspace provided log file descriptor. A privileged attacker
could use this to cause a denial of service (resource exhaustion).
(CVE-2015-6252)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
linux-image-3.19.0-30-generic 3.19.0-30.33~14.04.1
linux-image-3.19.0-30-generic-lpae 3.19.0-30.33~14.04.1
linux-image-3.19.0-30-lowlatency 3.19.0-30.33~14.04.1
linux-image-3.19.0-30-powerpc-e500mc 3.19.0-30.33~14.04.1
linux-image-3.19.0-30-powerpc-smp 3.19.0-30.33~14.04.1
linux-image-3.19.0-30-powerpc64-emb 3.19.0-30.33~14.04.1
linux-image-3.19.0-30-powerpc64-smp 3.19.0-30.33~14.04.1
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:
http://www.ubuntu.com/usn/usn-2751-1
CVE-2015-5697, CVE-2015-6252
Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-vivid/3.19.0-30.33~14.04.1
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==========================================================================
Ubuntu Security Notice USN-2749-1
September 29, 2015
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
Details:
Benjamin Randazzo discovered an information leak in the md (multiple
device) driver when the bitmap_info.file is disabled. A local privileged
attacker could use this to obtain sensitive information from the kernel.
(CVE-2015-5697)
Marc-Andr� Lureau discovered that the vhost driver did not properly
release the userspace provided log file descriptor. A privileged attacker
could use this to cause a denial of service (resource exhaustion).
(CVE-2015-6252)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
linux-image-3.13.0-65-generic 3.13.0-65.105~precise1
linux-image-3.13.0-65-generic-lpae 3.13.0-65.105~precise1
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:
http://www.ubuntu.com/usn/usn-2749-1
CVE-2015-5697, CVE-2015-6252
Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-65.105~precise1
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