==========================================================================
Ubuntu Security Notice USN-3406-1
August 28, 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:
It was discovered that an out of bounds read vulnerability existed in the
associative array implementation in the Linux kernel. A local attacker
could use this to cause a denial of service (system crash) or expose
sensitive information. (CVE-2016-7914)
It was discovered that a NULL pointer dereference existed in the Direct
Rendering Manager (DRM) driver for VMWare devices in the Linux kernel. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2017-7261)
It was discovered that the USB Cypress HID drivers for the Linux kernel did
not properly validate reported information from the device. An attacker
with physical access could use this to expose sensitive information (kernel
memory). (CVE-2017-7273)
A reference count bug was discovered in the Linux kernel ipx protocol
stack. A local attacker could exploit this flaw to cause a denial of
service or possibly other unspecified problems. (CVE-2017-7487)
Huang Weller discovered that the ext4 filesystem implementation in the
Linux kernel mishandled a needs-flushing-before-commit list. A local
attacker could use this to expose sensitive information. (CVE-2017-7495)
It was discovered that an information leak existed in the set_mempolicy and
mbind compat syscalls in the Linux kernel. A local attacker could use this
to expose sensitive information (kernel memory). (CVE-2017-7616)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
linux-image-3.13.0-129-generic 3.13.0-129.178
linux-image-3.13.0-129-generic-lpae 3.13.0-129.178
linux-image-3.13.0-129-lowlatency 3.13.0-129.178
linux-image-3.13.0-129-powerpc-e500 3.13.0-129.178
linux-image-3.13.0-129-powerpc-e500mc 3.13.0-129.178
linux-image-3.13.0-129-powerpc-smp 3.13.0-129.178
linux-image-3.13.0-129-powerpc64-emb 3.13.0-129.178
linux-image-3.13.0-129-powerpc64-smp 3.13.0-129.178
linux-image-generic 3.13.0.129.138
linux-image-generic-lpae 3.13.0.129.138
linux-image-lowlatency 3.13.0.129.138
linux-image-powerpc-e500 3.13.0.129.138
linux-image-powerpc-e500mc 3.13.0.129.138
linux-image-powerpc-smp 3.13.0.129.138
linux-image-powerpc64-emb 3.13.0.129.138
linux-image-powerpc64-smp 3.13.0.129.138
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-3406-1
CVE-2016-7914, CVE-2017-7261, CVE-2017-7273, CVE-2017-7487,
CVE-2017-7495, CVE-2017-7616
Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-129.178
—–BEGIN PGP SIGNATURE—–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=737X
—–END PGP SIGNATURE—–
—
