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USN-3335-1: Linux kernel vulnerabilities

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Ubuntu Security Notice USN-3335-1

19th June, 2017

linux, linux-meta 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 the stack guard page for processes in the Linux
kernel was not sufficiently large enough to prevent overlapping with the
heap. An attacker could leverage this with another vulnerability to execute
arbitrary code and gain administrative privileges (CVE-2017-1000364)

It was discovered that a use-after-free vulnerability in the core voltage
regulator driver of the Linux kernel. A local attacker could use this to
cause a denial of service or possibly execute arbitrary code.
(CVE-2014-9940)

It was discovered that a buffer overflow existed in the trace subsystem in
the Linux kernel. A privileged local attacker could use this to execute
arbitrary code. (CVE-2017-0605)

Roee Hay discovered that the parallel port printer driver in the Linux
kernel did not properly bounds check passed arguments. A local attacker
with write access to the kernel command line arguments could use this to
execute arbitrary code. (CVE-2017-1000363)

Li Qiang discovered that an integer overflow vulnerability 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) or possibly execute arbitrary code. (CVE-2017-7294)

A double free bug was discovered in the IPv4 stack of the Linux kernel. An
attacker could use this to cause a denial of service (system crash).
(CVE-2017-8890)

Andrey Konovalov discovered an IPv6 out-of-bounds read error in the Linux
kernel's IPv6 stack. A local attacker could cause a denial of service or
potentially other unspecified problems. (CVE-2017-9074)

Andrey Konovalov discovered a flaw in the handling of inheritance in the
Linux kernel's IPv6 stack. A local user could exploit this issue to cause a
denial of service or possibly other unspecified problems. (CVE-2017-9075)

It was discovered that dccp v6 in the Linux kernel mishandled inheritance.
A local attacker could exploit this issue to cause a denial of service or
potentially other unspecified problems. (CVE-2017-9076)

It was discovered that the transmission control protocol (tcp) v6 in the
Linux kernel mishandled inheritance. A local attacker could exploit this
issue to cause a denial of service or potentially other unspecified
problems. (CVE-2017-9077)

It was discovered that the IPv6 stack was doing over write consistency
check after the data was actually overwritten. A local attacker could
exploit this flaw to cause a denial of service (system crash).
(CVE-2017-9242)

Update instructions

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

Ubuntu 14.04 LTS:
linux-image-powerpc-e500mc 3.13.0.121.131
linux-image-lowlatency-pae 3.13.0.121.131
linux-image-3.13.0-121-powerpc64-emb 3.13.0-121.170
linux-image-generic-pae 3.13.0.121.131
linux-image-3.13.0-121-powerpc-smp 3.13.0-121.170
linux-image-3.13.0-121-powerpc-e500mc 3.13.0-121.170
linux-image-3.13.0-121-powerpc-e500 3.13.0-121.170
linux-image-3.13.0-121-generic-lpae 3.13.0-121.170
linux-image-generic-lts-quantal 3.13.0.121.131
linux-image-virtual 3.13.0.121.131
linux-image-powerpc-e500 3.13.0.121.131
linux-image-generic-lts-trusty 3.13.0.121.131
linux-image-3.13.0-121-generic 3.13.0-121.170
linux-image-omap 3.13.0.121.131
linux-image-powerpc64-emb 3.13.0.121.131
linux-image-3.13.0-121-powerpc64-smp 3.13.0-121.170
linux-image-generic 3.13.0.121.131
linux-image-highbank 3.13.0.121.131
linux-image-generic-lts-saucy 3.13.0.121.131
linux-image-powerpc-smp 3.13.0.121.131
linux-image-3.13.0-121-lowlatency 3.13.0-121.170
linux-image-generic-lpae-lts-saucy 3.13.0.121.131
linux-image-generic-lts-raring 3.13.0.121.131
linux-image-powerpc64-smp 3.13.0.121.131
linux-image-generic-lpae-lts-trusty 3.13.0.121.131
linux-image-generic-lpae 3.13.0.121.131
linux-image-lowlatency 3.13.0.121.131

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-2014-9940, CVE-2017-0605, CVE-2017-1000363, CVE-2017-1000364, CVE-2017-7294, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9242

...

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