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amazonAmazonALAS-2015-531
HistoryMay 27, 2015 - 2:05 p.m.

Medium: ruby20

2015-05-2714:05:00
alas.aws.amazon.com
13

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.028 Low

EPSS

Percentile

90.6%

JSON

Issue Overview:

As discussed in an upstream announcement (https://www.ruby-lang.org/en/news/2015/04/13/ruby-openssl-hostname-matching-vulnerability/), Ruby’s OpenSSL extension suffers a vulnerability through overly permissive matching of hostnames, which can lead to similar bugs such as CVE-2014-1492.

Affected Packages:

ruby20

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

New Packages:

i686:  
    rubygem20-bigdecimal-1.2.0-1.25.amzn1.i686  
    rubygem20-psych-2.0.0-1.25.amzn1.i686  
    ruby20-debuginfo-2.0.0.645-1.25.amzn1.i686  
    ruby20-libs-2.0.0.645-1.25.amzn1.i686  
    ruby20-devel-2.0.0.645-1.25.amzn1.i686  
    rubygem20-io-console-0.4.2-1.25.amzn1.i686  
    ruby20-2.0.0.645-1.25.amzn1.i686  
  
noarch:  
    ruby20-doc-2.0.0.645-1.25.amzn1.noarch  
    ruby20-irb-2.0.0.645-1.25.amzn1.noarch  
    rubygems20-2.0.14-1.25.amzn1.noarch  
    rubygems20-devel-2.0.14-1.25.amzn1.noarch  
  
src:  
    ruby20-2.0.0.645-1.25.amzn1.src  
  
x86_64:  
    ruby20-debuginfo-2.0.0.645-1.25.amzn1.x86_64  
    rubygem20-io-console-0.4.2-1.25.amzn1.x86_64  
    ruby20-2.0.0.645-1.25.amzn1.x86_64  
    rubygem20-bigdecimal-1.2.0-1.25.amzn1.x86_64  
    ruby20-devel-2.0.0.645-1.25.amzn1.x86_64  
    ruby20-libs-2.0.0.645-1.25.amzn1.x86_64  
    rubygem20-psych-2.0.0-1.25.amzn1.x86_64

Additional References

Red Hat: CVE-2015-1855

Mitre: CVE-2015-1855

OSVersionArchitecturePackageVersionFilename
Amazon Linux1i686rubygem20-bigdecimal< 1.2.0-1.25.amzn1rubygem20-bigdecimal-1.2.0-1.25.amzn1.i686.rpm
Amazon Linux1i686rubygem20-psych< 2.0.0-1.25.amzn1rubygem20-psych-2.0.0-1.25.amzn1.i686.rpm
Amazon Linux1i686ruby20-debuginfo< 2.0.0.645-1.25.amzn1ruby20-debuginfo-2.0.0.645-1.25.amzn1.i686.rpm
Amazon Linux1i686ruby20-libs< 2.0.0.645-1.25.amzn1ruby20-libs-2.0.0.645-1.25.amzn1.i686.rpm
Amazon Linux1i686ruby20-devel< 2.0.0.645-1.25.amzn1ruby20-devel-2.0.0.645-1.25.amzn1.i686.rpm
Amazon Linux1i686rubygem20-io-console< 0.4.2-1.25.amzn1rubygem20-io-console-0.4.2-1.25.amzn1.i686.rpm
Amazon Linux1i686ruby20< 2.0.0.645-1.25.amzn1ruby20-2.0.0.645-1.25.amzn1.i686.rpm
Amazon Linux1noarchruby20-doc< 2.0.0.645-1.25.amzn1ruby20-doc-2.0.0.645-1.25.amzn1.noarch.rpm
Amazon Linux1noarchruby20-irb< 2.0.0.645-1.25.amzn1ruby20-irb-2.0.0.645-1.25.amzn1.noarch.rpm
Amazon Linux1noarchrubygems20< 2.0.14-1.25.amzn1rubygems20-2.0.14-1.25.amzn1.noarch.rpm
Rows per page:
1-10 of 181

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5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.028 Low

EPSS

Percentile

90.6%

JSON
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