ignore security and it'll go away

Ubuntu Security Notice USN-3381-1

Ubuntu Security Notice USN-3381-1
Posted Aug 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3381-1 - Peter Pi discovered that the colormap handling for frame buffer devices in the Linux kernel contained an integer overflow. A local attacker could use this to disclose sensitive information. It was discovered that the Linux kernel did not properly restrict RLIMIT_STACK size. A local attacker could use this in conjunction with another vulnerability to possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-8405, CVE-2017-1000365, CVE-2017-2618, CVE-2017-7482
MD5 | 23e15cb3b383412d96b020c0af37f828

Ubuntu Security Notice USN-3381-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3381-1
August 07, 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:

Peter Pi discovered that the colormap handling for frame buffer devices in
the Linux kernel contained an integer overflow. A local attacker could use
this to disclose sensitive information (kernel memory). (CVE-2016-8405)

It was discovered that the Linux kernel did not properly restrict
RLIMIT_STACK size. A local attacker could use this in conjunction with
another vulnerability to possibly execute arbitrary code.
(CVE-2017-1000365)

It was discovered that SELinux in the Linux kernel did not properly handle
empty writes to /proc/pid/attr. A local attacker could use this to cause a
denial of service (system crash). (CVE-2017-2618)

c3cPS discovered that the RxRPC Kerberos 5 ticket handling code in the
Linux kernel did not properly verify metadata. A remote attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-7482)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.13.0-126-generic 3.13.0-126.175
linux-image-3.13.0-126-generic-lpae 3.13.0-126.175
linux-image-3.13.0-126-lowlatency 3.13.0-126.175
linux-image-3.13.0-126-powerpc-e500 3.13.0-126.175
linux-image-3.13.0-126-powerpc-e500mc 3.13.0-126.175
linux-image-3.13.0-126-powerpc-smp 3.13.0-126.175
linux-image-3.13.0-126-powerpc64-emb 3.13.0-126.175
linux-image-3.13.0-126-powerpc64-smp 3.13.0-126.175
linux-image-generic 3.13.0.126.136
linux-image-generic-lpae 3.13.0.126.136
linux-image-lowlatency 3.13.0.126.136
linux-image-powerpc-e500 3.13.0.126.136
linux-image-powerpc-e500mc 3.13.0.126.136
linux-image-powerpc-smp 3.13.0.126.136
linux-image-powerpc64-emb 3.13.0.126.136
linux-image-powerpc64-smp 3.13.0.126.136

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-3381-1
CVE-2016-8405, CVE-2017-1000365, CVE-2017-2618, CVE-2017-7482

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-126.175

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

September 2017

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Sep 1st
    5 Files
  • 2
    Sep 2nd
    5 Files
  • 3
    Sep 3rd
    3 Files
  • 4
    Sep 4th
    13 Files
  • 5
    Sep 5th
    16 Files
  • 6
    Sep 6th
    15 Files
  • 7
    Sep 7th
    20 Files
  • 8
    Sep 8th
    16 Files
  • 9
    Sep 9th
    4 Files
  • 10
    Sep 10th
    2 Files
  • 11
    Sep 11th
    15 Files
  • 12
    Sep 12th
    19 Files
  • 13
    Sep 13th
    20 Files
  • 14
    Sep 14th
    38 Files
  • 15
    Sep 15th
    31 Files
  • 16
    Sep 16th
    1 Files
  • 17
    Sep 17th
    7 Files
  • 18
    Sep 18th
    15 Files
  • 19
    Sep 19th
    40 Files
  • 20
    Sep 20th
    8 Files
  • 21
    Sep 21st
    1 Files
  • 22
    Sep 22nd
    0 Files
  • 23
    Sep 23rd
    0 Files
  • 24
    Sep 24th
    0 Files
  • 25
    Sep 25th
    0 Files
  • 26
    Sep 26th
    0 Files
  • 27
    Sep 27th
    0 Files
  • 28
    Sep 28th
    0 Files
  • 29
    Sep 29th
    0 Files
  • 30
    Sep 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2016 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close