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ubuntuUbuntuUSN-3541-2
HistoryJan 23, 2018 - 12:00 a.m.

Linux kernel (HWE) vulnerabilities

2018-01-2300:00:00
ubuntu.com
57

4.7 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:C/I:N/A:N

5.6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

6.7 Medium

AI Score

Confidence

High

0.976 High

EPSS

Percentile

100.0%

JSON

Releases

  • Ubuntu 16.04 ESM

Packages

  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-hwe - Linux hardware enablement (HWE) kernel
  • linux-oem - Linux kernel for OEM processors

Details

USN-3541-1 addressed vulnerabilities in the Linux kernel for Ubuntu
17.10. This update provides the corresponding updates for the
Linux Hardware Enablement (HWE) kernel from Ubuntu 17.10 for Ubuntu
16.04 LTS.

Jann Horn discovered that microprocessors utilizing speculative
execution and branch prediction may allow unauthorized memory
reads via sidechannel attacks. This flaw is known as Spectre. A
local attacker could use this to expose sensitive information,
including kernel memory. This update provides mitigations for the
i386 (CVE-2017-5753 only), amd64, ppc64el, and s390x architectures.
(CVE-2017-5715, CVE-2017-5753)

USN-3523-2 mitigated CVE-2017-5754 (Meltdown) for the amd64
architecture in the Linux Hardware Enablement (HWE) kernel from Ubuntu
17.10 for Ubuntu 16.04 LTS. This update provides the corresponding
mitigations for the ppc64el architecture. Original advisory details:

Jann Horn discovered that microprocessors utilizing speculative
execution and indirect branch prediction may allow unauthorized memory
reads via sidechannel attacks. This flaw is known as Meltdown. A local
attacker could use this to expose sensitive information, including
kernel memory. (CVE-2017-5754)

OSVersionArchitecturePackageVersionFilename
Ubuntu16.04noarchlinux-image-4.13.0-1006-azure< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-azure-cloud-tools-4.13.0-1006< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-azure-cloud-tools-4.13.0-1006-dbgsym< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-azure-headers-4.13.0-1006< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-azure-tools-4.13.0-1006< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-azure-tools-4.13.0-1006-dbgsym< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-cloud-tools-4.13.0-1006-azure< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-headers-4.13.0-1006-azure< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-image-4.13.0-1006-azure-dbgsym< 4.13.0-1006.8UNKNOWN
Ubuntu16.04noarchlinux-image-extra-4.13.0-1006-azure< 4.13.0-1006.8UNKNOWN
Rows per page:
1-10 of 1161

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4.7 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:C/I:N/A:N

5.6 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

6.7 Medium

AI Score

Confidence

High

0.976 High

EPSS

Percentile

100.0%

JSON
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