what you don't know can hurt you

Ubuntu Security Notice USN-3378-2

Ubuntu Security Notice USN-3378-2
Posted Aug 4, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3378-2 - USN-3378-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Fan Wu and Shixiong Zhao discovered a race condition between inotify events and vfs rename operations in the Linux kernel. An unprivileged local attacker could use this to cause a denial of service or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-1000365, CVE-2017-10810, CVE-2017-7482, CVE-2017-7533
MD5 | 83be044752437775050f88aee02fa689

Ubuntu Security Notice USN-3378-2

Change Mirror Download

===========================================================================
Ubuntu Security Notice USN-3378-2
August 03, 2017

linux-lts-xenial 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-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty

Details:

USN-3378-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu
14.04 LTS.

Fan Wu and Shixiong Zhao discovered a race condition between inotify events
and vfs rename operations in the Linux kernel. An unprivileged local
attacker could use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2017-7533)

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)

=E6=9D=8E=E5=BC=BA discovered that the Virtio GPU driver in the Linux kernel did not
properly free memory in some situations. A local attacker could use this to
cause a denial of service (memory consumption). (CVE-2017-10810)

=E7=9F=B3=E7=A3=8A 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-4.4.0-89-generic 4.4.0-89.112~14.04.1
linux-image-4.4.0-89-generic-lpae 4.4.0-89.112~14.04.1
linux-image-4.4.0-89-lowlatency 4.4.0-89.112~14.04.1
linux-image-4.4.0-89-powerpc-e500mc 4.4.0-89.112~14.04.1
linux-image-4.4.0-89-powerpc-smp 4.4.0-89.112~14.04.1
linux-image-4.4.0-89-powerpc64-emb 4.4.0-89.112~14.04.1
linux-image-4.4.0-89-powerpc64-smp 4.4.0-89.112~14.04.1
linux-image-generic-lpae-lts-xenial 4.4.0.89.74
linux-image-generic-lts-xenial 4.4.0.89.74
linux-image-lowlatency-lts-xenial 4.4.0.89.74
linux-image-powerpc-e500mc-lts-xenial 4.4.0.89.74
linux-image-powerpc-smp-lts-xenial 4.4.0.89.74
linux-image-powerpc64-emb-lts-xenial 4.4.0.89.74
linux-image-powerpc64-smp-lts-xenial 4.4.0.89.74

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-3378-2
https://www.ubuntu.com/usn/usn-3378-1
CVE-2017-1000365, CVE-2017-10810, CVE-2017-7482, CVE-2017-7533

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-xenial/4.4.0-89.112~14.04.1


Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

March 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    15 Files
  • 2
    Mar 2nd
    5 Files
  • 3
    Mar 3rd
    3 Files
  • 4
    Mar 4th
    25 Files
  • 5
    Mar 5th
    20 Files
  • 6
    Mar 6th
    16 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    12 Files
  • 9
    Mar 9th
    3 Files
  • 10
    Mar 10th
    4 Files
  • 11
    Mar 11th
    23 Files
  • 12
    Mar 12th
    12 Files
  • 13
    Mar 13th
    12 Files
  • 14
    Mar 14th
    19 Files
  • 15
    Mar 15th
    12 Files
  • 16
    Mar 16th
    3 Files
  • 17
    Mar 17th
    1 Files
  • 18
    Mar 18th
    15 Files
  • 19
    Mar 19th
    22 Files
  • 20
    Mar 20th
    14 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    15 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

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close