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ubuntuUbuntuUSN-3522-1
HistoryJan 09, 2018 - 12:00 a.m.

Linux kernel vulnerability

2018-01-0900:00:00
ubuntu.com
65

CVSS2

4.7

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

CVSS3

5.6

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

AI Score

6.3

Confidence

High

EPSS

0.974

Percentile

99.9%

JSON

Releases

  • Ubuntu 16.04 ESM

Packages

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-euclid - Linux kernel for Intel Euclid systems
  • linux-kvm - Linux kernel for cloud environments

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.

Related

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Missing Linux Kernel mitigations for 'Meltdown' hardware vulnerabilities
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IT threat evolution Q1 2018
2018-05-14 10:00:08

CVSS2

4.7

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

CVSS3

5.6

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

AI Score

6.3

Confidence

High

EPSS

0.974

Percentile

99.9%

JSON
Related for USN-3522-1
ubuntu8threatpost3openvas25debiancve3msrc2redhatcve3nvd3nessus57prion3osv4archlinux1cve3photon1cloudfoundry2cvelist3ubuntucve3alpinelinux1debian1oraclelinux5slackware1freebsd_advisory1mageia6ibm13amazon2redhat18xen2freebsd1intel1kitploit1nvidia4suse2seebug1huawei1googleprojectzero1vmware1qualysblog2cert1centos1malwarebytes1symantec2talosblog1thn1veeam1virtuozzo1securelist1