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

Kernel Live Patch Security Notice LSN-0056-1

Kernel Live Patch Security Notice LSN-0056-1
Posted Sep 23, 2019
Authored by Benjamin M. Romer

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.

tags | advisory, denial of service, overflow, arbitrary, kernel
systems | linux
advisories | CVE-2019-14835
SHA-256 | 2ae10bdb1c9632e027b75b76ad2d6e3b299967f41342245c237b87d05be2b799

Kernel Live Patch Security Notice LSN-0056-1

Change Mirror Download
==========================================================================
Kernel Live Patch Security Notice 0056-1
September 20, 2019

linux vulnerability
==========================================================================

A security issue affects these releases of Ubuntu:

| Series | Base kernel | Arch | flavors |
|------------------+--------------+----------+------------------|
| Ubuntu 18.04 LTS | 4.15.0 | amd64 | generic |
| Ubuntu 18.04 LTS | 4.15.0 | amd64 | lowlatency |
| Ubuntu 16.04 LTS | 4.4.0 | amd64 | generic |
| Ubuntu 16.04 LTS | 4.4.0 | amd64 | lowlatency |
| Ubuntu 16.04 LTS | 4.15.0 | amd64 | generic |
| Ubuntu 16.04 LTS | 4.15.0 | amd64 | lowlatency |

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

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)

Update instructions:

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

| Kernel | Version | flavors |
|--------------------------+----------+--------------------------|
| 4.4.0-148.174 | 56.1 | lowlatency, generic |
| 4.4.0-150.176 | 56.1 | generic, lowlatency |
| 4.4.0-151.178 | 56.1 | lowlatency, generic |
| 4.4.0-154.181 | 56.1 | lowlatency, generic |
| 4.4.0-157.185 | 56.1 | lowlatency, generic |
| 4.4.0-159.187 | 56.1 | lowlatency, generic |
| 4.4.0-161.189 | 56.1 | lowlatency, generic |
| 4.15.0-50.54 | 56.1 | generic, lowlatency |
| 4.15.0-50.54~16.04.1 | 56.1 | generic, lowlatency |
| 4.15.0-51.55 | 56.1 | generic, lowlatency |
| 4.15.0-51.55~16.04.1 | 56.1 | generic, lowlatency |
| 4.15.0-52.56 | 56.1 | lowlatency, generic |
| 4.15.0-52.56~16.04.1 | 56.1 | generic, lowlatency |
| 4.15.0-54.58 | 56.1 | generic, lowlatency |
| 4.15.0-54.58~16.04.1 | 56.1 | generic, lowlatency |
| 4.15.0-55.60 | 56.1 | generic, lowlatency |
| 4.15.0-58.64 | 56.1 | generic, lowlatency |
| 4.15.0-58.64~16.04.1 | 56.1 | lowlatency, generic |
| 4.15.0-60.67 | 56.1 | lowlatency, generic |
| 4.15.0-60.67~16.04.1 | 56.1 | generic, lowlatency |
| 4.15.0-62.69 | 56.1 | generic, lowlatency |
| 4.15.0-62.69~16.04.1 | 56.1 | lowlatency, generic |

Support Information:

Kernels older than the levels listed below do not receive livepatch
updates. Please upgrade your kernel as soon as possible.

| Series | Version | Flavors |
|------------------+------------------+--------------------------|
| Ubuntu 18.04 LTS | 4.15.0-50 | generic lowlatency |
| Ubuntu 16.04 LTS | 4.15.0-50 | generic lowlatency |
| Ubuntu 14.04 LTS | 4.4.0-148 | generic lowlatency |
| Ubuntu 16.04 LTS | 4.4.0-148 | generic lowlatency |

References:
CVE-2019-14835


--
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
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
    0 Files
  • 20
    Jul 20th
    0 Files
  • 21
    Jul 21st
    0 Files
  • 22
    Jul 22nd
    0 Files
  • 23
    Jul 23rd
    0 Files
  • 24
    Jul 24th
    0 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