exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Ubuntu Security Notice USN-3168-1

Ubuntu Security Notice USN-3168-1
Posted Jan 11, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3168-1 - Dmitry Vyukov discovered that the KVM implementation in the Linux kernel did not properly initialize the Code Segment in certain error cases. A local attacker could use this to expose sensitive information. Andrey Konovalov discovered that signed integer overflows existed in the setsockopt system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-9756, CVE-2016-9793, CVE-2016-9794, CVE-2016-9806
SHA-256 | 6ae254d390465843f0520c113fcc5fac33d391e5003e4cab5a57c6df6966df42

Ubuntu Security Notice USN-3168-1

Change Mirror Download

==========================================================================
Ubuntu Security Notice USN-3168-1
January 11, 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 kernel.

Software Description:
- linux: Linux kernel

Details:

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel
did not properly initialize the Code Segment (CS) in certain error cases. A
local attacker could use this to expose sensitive information (kernel
memory). (CVE-2016-9756)

Andrey Konovalov discovered that signed integer overflows existed in the
setsockopt() system call when handling the SO_SNDBUFFORCE and
SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability
could use this to cause a denial of service (system crash or memory
corruption). (CVE-2016-9793)

Baozeng Ding discovered a race condition that could lead to a use-after-
free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux
kernel. A local attacker could use this to cause a denial of service
(system crash). (CVE-2016-9794)

Baozeng Ding discovered a double free in the netlink_dump() function in the
Linux kernel. A local attacker could use this to cause a denial of service
(system crash). (CVE-2016-9806)

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.13.0-107-generic 3.13.0-107.154
linux-image-3.13.0-107-generic-lpae 3.13.0-107.154
linux-image-3.13.0-107-lowlatency 3.13.0-107.154
linux-image-3.13.0-107-powerpc-e500 3.13.0-107.154
linux-image-3.13.0-107-powerpc-e500mc 3.13.0-107.154
linux-image-3.13.0-107-powerpc-smp 3.13.0-107.154
linux-image-3.13.0-107-powerpc64-emb 3.13.0-107.154
linux-image-3.13.0-107-powerpc64-smp 3.13.0-107.154
linux-image-generic 3.13.0.107.115
linux-image-generic-lpae 3.13.0.107.115
linux-image-lowlatency 3.13.0.107.115
linux-image-powerpc-e500 3.13.0.107.115
linux-image-powerpc-e500mc 3.13.0.107.115
linux-image-powerpc-smp 3.13.0.107.115
linux-image-powerpc64-emb 3.13.0.107.115
linux-image-powerpc64-smp 3.13.0.107.115

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:
http://www.ubuntu.com/usn/usn-3168-1
CVE-2016-9756, CVE-2016-9793, CVE-2016-9794, CVE-2016-9806

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-107.154


Login or Register to add favorites

File Archive:

March 2024

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close