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

Ubuntu Security Notice USN-3641-2

Ubuntu Security Notice USN-3641-2
Posted May 8, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3641-2 - USN-3641-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 17.10. This update provides the corresponding updates for Ubuntu 12.04 ESM. Nick Peterson discovered that the Linux kernel did not properly handle debug exceptions following a MOV/POP to SS instruction. A local attacker could use this to cause a denial of service. This issue only affected the amd64 architecture. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1000199, CVE-2018-1087, CVE-2018-8897
SHA-256 | 8b62cd3908a2ea60933e4f5060c4a7cffa0119feb5c2296cf0f5d7231274b888

Ubuntu Security Notice USN-3641-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3641-2
May 08, 2018

linux, linux-lts-trusty vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM

Details:

USN-3641-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS, Ubuntu 16.04 LTS, and Ubuntu 17.10. This update provides the
corresponding updates for Ubuntu 12.04 ESM.

Nick Peterson discovered that the Linux kernel did not properly handle
debug exceptions following a MOV/POP to SS instruction. A local attacker
could use this to cause a denial of service (system crash). This issue only
affected the amd64 architecture. (CVE-2018-8897)

Andy Lutomirski discovered that the KVM subsystem of the Linux kernel did
not properly emulate the ICEBP instruction following a MOV/POP to SS
instruction. A local attacker in a KVM virtual machine could use this to
cause a denial of service (guest VM crash) or possibly escalate privileges
inside of the virtual machine. This issue only affected the i386 and amd64
architectures. (CVE-2018-1087)

Andy Lutomirski discovered that the Linux kernel did not properly perform
error handling on virtualized debug registers. A local attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2018-1000199)

Update instructions:

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

Ubuntu 12.04 ESM:
linux-image-3.13.0-147-generic 3.13.0-147.196~precise1
linux-image-3.13.0-147-generic-lpae 3.13.0-147.196~precise1
linux-image-3.2.0-134-generic 3.2.0-134.180
linux-image-3.2.0-134-generic-pae 3.2.0-134.180
linux-image-3.2.0-134-highbank 3.2.0-134.180
linux-image-3.2.0-134-omap 3.2.0-134.180
linux-image-3.2.0-134-powerpc-smp 3.2.0-134.180
linux-image-3.2.0-134-powerpc64-smp 3.2.0-134.180
linux-image-3.2.0-134-virtual 3.2.0-134.180
linux-image-generic 3.2.0.134.149
linux-image-generic-lpae-lts-trusty 3.13.0.147.138
linux-image-generic-lts-trusty 3.13.0.147.138
linux-image-generic-pae 3.2.0.134.149
linux-image-highbank 3.2.0.134.149
linux-image-omap 3.2.0.134.149
linux-image-powerpc 3.2.0.134.149
linux-image-powerpc-smp 3.2.0.134.149
linux-image-powerpc64-smp 3.2.0.134.149

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/usn/usn-3641-2
https://usn.ubuntu.com/usn/usn-3641-1
CVE-2018-1000199, CVE-2018-1087, CVE-2018-8897

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
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 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