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amazonAmazonALAS2-2019-1253
HistoryAug 05, 2019 - 5:48 p.m.

Medium: kernel

2019-08-0517:48:00
alas.aws.amazon.com
18

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

7 High

AI Score

Confidence

High

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

52.7%

JSON

Issue Overview:

There is a newly discovered variant side-channel attack of Spectre V1 which leverages SWAPGS instructions to bypass KPTI/KVA mitigations. This could lead to a kernel information disclosure. (CVE-2019-1125)

Affected Packages:

kernel

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update kernel to update your system.

New Packages:

aarch64:  
    kernel-4.14.133-113.112.amzn2.aarch64  
    kernel-headers-4.14.133-113.112.amzn2.aarch64  
    kernel-debuginfo-common-aarch64-4.14.133-113.112.amzn2.aarch64  
    perf-4.14.133-113.112.amzn2.aarch64  
    perf-debuginfo-4.14.133-113.112.amzn2.aarch64  
    python-perf-4.14.133-113.112.amzn2.aarch64  
    python-perf-debuginfo-4.14.133-113.112.amzn2.aarch64  
    kernel-tools-4.14.133-113.112.amzn2.aarch64  
    kernel-tools-devel-4.14.133-113.112.amzn2.aarch64  
    kernel-tools-debuginfo-4.14.133-113.112.amzn2.aarch64  
    kernel-devel-4.14.133-113.112.amzn2.aarch64  
    kernel-debuginfo-4.14.133-113.112.amzn2.aarch64  
  
i686:  
    kernel-headers-4.14.133-113.112.amzn2.i686  
  
src:  
    kernel-4.14.133-113.112.amzn2.src  
  
x86_64:  
    kernel-4.14.133-113.112.amzn2.x86_64  
    kernel-headers-4.14.133-113.112.amzn2.x86_64  
    kernel-debuginfo-common-x86_64-4.14.133-113.112.amzn2.x86_64  
    perf-4.14.133-113.112.amzn2.x86_64  
    perf-debuginfo-4.14.133-113.112.amzn2.x86_64  
    python-perf-4.14.133-113.112.amzn2.x86_64  
    python-perf-debuginfo-4.14.133-113.112.amzn2.x86_64  
    kernel-tools-4.14.133-113.112.amzn2.x86_64  
    kernel-tools-devel-4.14.133-113.112.amzn2.x86_64  
    kernel-tools-debuginfo-4.14.133-113.112.amzn2.x86_64  
    kernel-devel-4.14.133-113.112.amzn2.x86_64  
    kernel-debuginfo-4.14.133-113.112.amzn2.x86_64

Additional References

Red Hat: CVE-2019-1125

Mitre: CVE-2019-1125

OSVersionArchitecturePackageVersionFilename
Amazon Linux2aarch64kernel< 4.14.133-113.112.amzn2kernel-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-headers< 4.14.133-113.112.amzn2kernel-headers-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-debuginfo-common-aarch64< 4.14.133-113.112.amzn2kernel-debuginfo-common-aarch64-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64perf< 4.14.133-113.112.amzn2perf-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64perf-debuginfo< 4.14.133-113.112.amzn2perf-debuginfo-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64python-perf< 4.14.133-113.112.amzn2python-perf-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64python-perf-debuginfo< 4.14.133-113.112.amzn2python-perf-debuginfo-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-tools< 4.14.133-113.112.amzn2kernel-tools-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-tools-devel< 4.14.133-113.112.amzn2kernel-tools-devel-4.14.133-113.112.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-tools-debuginfo< 4.14.133-113.112.amzn2kernel-tools-debuginfo-4.14.133-113.112.amzn2.aarch64.rpm
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5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

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7 High

AI Score

Confidence

High

2.1 Low

CVSS2

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LOCAL

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LOW

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Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

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

0.002 Low

EPSS

Percentile

52.7%

JSON
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