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amazonAmazonALAS-2022-1638
HistoryOct 03, 2022 - 7:29 p.m.

Medium: ruby20

2022-10-0319:29:00
alas.aws.amazon.com
8

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.004 Low

EPSS

Percentile

73.0%

JSON

Issue Overview:

A buffer overrun vulnerability was found in Ruby. The issue occurs in a conversion algorithm from a String to a Float that causes process termination due to a segmentation fault, but under limited circumstances. This flaw may cause an illegal memory read. (CVE-2022-28739)

Affected Packages:

ruby20

Issue Correction:
Run yum update ruby20 to update your system.

New Packages:

i686:  
    rubygem20-io-console-0.4.2-2.41.amzn1.i686  
    ruby20-devel-2.0.0.648-2.41.amzn1.i686  
    ruby20-2.0.0.648-2.41.amzn1.i686  
    ruby20-debuginfo-2.0.0.648-2.41.amzn1.i686  
    rubygem20-bigdecimal-1.2.0-2.41.amzn1.i686  
    ruby20-libs-2.0.0.648-2.41.amzn1.i686  
    rubygem20-psych-2.0.0-2.41.amzn1.i686  
  
noarch:  
    ruby20-doc-2.0.0.648-2.41.amzn1.noarch  
    ruby20-irb-2.0.0.648-2.41.amzn1.noarch  
    rubygems20-2.0.14.1-2.41.amzn1.noarch  
    rubygems20-devel-2.0.14.1-2.41.amzn1.noarch  
  
src:  
    ruby20-2.0.0.648-2.41.amzn1.src  
  
x86_64:  
    ruby20-libs-2.0.0.648-2.41.amzn1.x86_64  
    rubygem20-bigdecimal-1.2.0-2.41.amzn1.x86_64  
    rubygem20-psych-2.0.0-2.41.amzn1.x86_64  
    rubygem20-io-console-0.4.2-2.41.amzn1.x86_64  
    ruby20-2.0.0.648-2.41.amzn1.x86_64  
    ruby20-debuginfo-2.0.0.648-2.41.amzn1.x86_64  
    ruby20-devel-2.0.0.648-2.41.amzn1.x86_64

Additional References

Red Hat: CVE-2022-28739

Mitre: CVE-2022-28739

OSVersionArchitecturePackageVersionFilename
Amazon Linux1i686rubygem20-io-console< 0.4.2-2.41.amzn1rubygem20-io-console-0.4.2-2.41.amzn1.i686.rpm
Amazon Linux1i686ruby20-devel< 2.0.0.648-2.41.amzn1ruby20-devel-2.0.0.648-2.41.amzn1.i686.rpm
Amazon Linux1i686ruby20< 2.0.0.648-2.41.amzn1ruby20-2.0.0.648-2.41.amzn1.i686.rpm
Amazon Linux1i686ruby20-debuginfo< 2.0.0.648-2.41.amzn1ruby20-debuginfo-2.0.0.648-2.41.amzn1.i686.rpm
Amazon Linux1i686rubygem20-bigdecimal< 1.2.0-2.41.amzn1rubygem20-bigdecimal-1.2.0-2.41.amzn1.i686.rpm
Amazon Linux1i686ruby20-libs< 2.0.0.648-2.41.amzn1ruby20-libs-2.0.0.648-2.41.amzn1.i686.rpm
Amazon Linux1i686rubygem20-psych< 2.0.0-2.41.amzn1rubygem20-psych-2.0.0-2.41.amzn1.i686.rpm
Amazon Linux1noarchruby20-doc< 2.0.0.648-2.41.amzn1ruby20-doc-2.0.0.648-2.41.amzn1.noarch.rpm
Amazon Linux1noarchruby20-irb< 2.0.0.648-2.41.amzn1ruby20-irb-2.0.0.648-2.41.amzn1.noarch.rpm
Amazon Linux1noarchrubygems20< 2.0.14.1-2.41.amzn1rubygems20-2.0.14.1-2.41.amzn1.noarch.rpm
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1-10 of 181

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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.004 Low

EPSS

Percentile

73.0%

JSON
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