what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Ubuntu Security Notice USN-4135-2

Ubuntu Security Notice USN-4135-2
Posted Sep 18, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4135-2 - Peter Pi discovered a buffer overflow in the virtio network backend implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service or possibly execute arbitrary code in the host OS. It was discovered that the Linux kernel on PowerPC architectures did not properly handle Facility Unavailable exceptions in some situations. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-14835, CVE-2019-15030, CVE-2019-15031
SHA-256 | b1b0a10cc050386d41f1213e38643cfc6f7fdab4fb404d292ad8210fbc0778eb

Ubuntu Security Notice USN-4135-2

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4135-2
September 18, 2019

linux, linux-aws, linux-azure, linux-lts-trusty, linux-lts-xenial
vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty
- linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM

Details:

Peter Pi discovered a buffer overflow in the virtio network backend
(vhost_net) implementation in the Linux kernel. An attacker in a guest may
be able to use this to cause a denial of service (host OS crash) or
possibly execute arbitrary code in the host OS. (CVE-2019-14835)

It was discovered that the Linux kernel on PowerPC architectures did not
properly handle Facility Unavailable exceptions in some situations. A local
attacker could use this to expose sensitive information. (CVE-2019-15030)

It was discovered that the Linux kernel on PowerPC architectures did not
properly handle exceptions on interrupts in some situations. A local
attacker could use this to expose sensitive information. (CVE-2019-15031)

Update instructions:

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

Ubuntu 14.04 ESM:
linux-image-3.13.0-173-generic 3.13.0-173.224
linux-image-3.13.0-173-generic-lpae 3.13.0-173.224
linux-image-3.13.0-173-lowlatency 3.13.0-173.224
linux-image-3.13.0-173-powerpc-e500 3.13.0-173.224
linux-image-3.13.0-173-powerpc-e500mc 3.13.0-173.224
linux-image-3.13.0-173-powerpc-smp 3.13.0-173.224
linux-image-3.13.0-173-powerpc64-emb 3.13.0-173.224
linux-image-3.13.0-173-powerpc64-smp 3.13.0-173.224
linux-image-4.15.0-1059-azure 4.15.0-1059.64~14.04.1
linux-image-4.4.0-1054-aws 4.4.0-1054.58
linux-image-4.4.0-164-generic 4.4.0-164.192~14.04.1
linux-image-4.4.0-164-generic-lpae 4.4.0-164.192~14.04.1
linux-image-4.4.0-164-lowlatency 4.4.0-164.192~14.04.1
linux-image-4.4.0-164-powerpc-e500mc 4.4.0-164.192~14.04.1
linux-image-4.4.0-164-powerpc-smp 4.4.0-164.192~14.04.1
linux-image-4.4.0-164-powerpc64-emb 4.4.0-164.192~14.04.1
linux-image-4.4.0-164-powerpc64-smp 4.4.0-164.192~14.04.1
linux-image-aws 4.4.0.1054.55
linux-image-azure 4.15.0.1059.45
linux-image-generic 3.13.0.173.184
linux-image-generic-lpae 3.13.0.173.184
linux-image-generic-lpae-lts-xenial 4.4.0.164.143
linux-image-generic-lts-xenial 4.4.0.164.143
linux-image-lowlatency 3.13.0.173.184
linux-image-lowlatency-lts-xenial 4.4.0.164.143
linux-image-powerpc-e500 3.13.0.173.184
linux-image-powerpc-e500mc 3.13.0.173.184
linux-image-powerpc-e500mc-lts-xenial 4.4.0.164.143
linux-image-powerpc-smp 3.13.0.173.184
linux-image-powerpc-smp-lts-xenial 4.4.0.164.143
linux-image-powerpc64-emb 3.13.0.173.184
linux-image-powerpc64-emb-lts-xenial 4.4.0.164.143
linux-image-powerpc64-smp 3.13.0.173.184
linux-image-powerpc64-smp-lts-xenial 4.4.0.164.143
linux-image-server 3.13.0.173.184
linux-image-virtual 3.13.0.173.184
linux-image-virtual-lts-xenial 4.4.0.164.143

Ubuntu 12.04 ESM:
linux-image-3.13.0-173-generic 3.13.0-173.224~12.04.1
linux-image-3.13.0-173-generic-lpae 3.13.0-173.224~12.04.1
linux-image-3.13.0-173-lowlatency 3.13.0-173.224~12.04.1
linux-image-3.2.0-143-generic 3.2.0-143.190
linux-image-3.2.0-143-generic-pae 3.2.0-143.190
linux-image-3.2.0-143-highbank 3.2.0-143.190
linux-image-3.2.0-143-omap 3.2.0-143.190
linux-image-3.2.0-143-powerpc-smp 3.2.0-143.190
linux-image-3.2.0-143-powerpc64-smp 3.2.0-143.190
linux-image-3.2.0-143-virtual 3.2.0-143.190
linux-image-generic 3.2.0.143.158
linux-image-generic-lpae-lts-trusty 3.13.0.173.161
linux-image-generic-lts-trusty 3.13.0.173.161
linux-image-generic-pae 3.2.0.143.158
linux-image-highbank 3.2.0.143.158
linux-image-omap 3.2.0.143.158
linux-image-powerpc 3.2.0.143.158
linux-image-powerpc-smp 3.2.0.143.158
linux-image-powerpc64-smp 3.2.0.143.158
linux-image-server 3.2.0.143.158
linux-image-virtual 3.2.0.143.158

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://usn.ubuntu.com/4135-2
https://usn.ubuntu.com/4135-1
CVE-2019-14835, CVE-2019-15030, CVE-2019-15031
Login or Register to add favorites

File Archive:

July 2024

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