Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Nokogiri vulnerability
Informations
Name USN-4175-1 First vendor Publication 2019-11-05
Vendor Ubuntu Last vendor Modification 2019-11-05
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
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Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.10 - Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS

Summary:

Nokogiri could be made to execute programs if it received specially crafted input.

Software Description: - ruby-nokogiri: HTML, XML, SAX, and Reader parser for Ruby

Details:

It was discovered that Nokogiri incorrectly handled inputs. A remote attacker could possibly use this issue to execute arbitrary OS commands.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.10:
ruby-nokogiri 1.10.3+dfsg1-2ubuntu0.1

Ubuntu 19.04:
ruby-nokogiri 1.10.0+dfsg1-2ubuntu0.1

Ubuntu 18.04 LTS:
ruby-nokogiri 1.8.2-1ubuntu0.1

Ubuntu 16.04 LTS:
ruby-nokogiri 1.6.7.2-3ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4175-1
CVE-2019-5477

Package Information:
https://launchpad.net/ubuntu/+source/ruby-nokogiri/1.10.3+dfsg1-2ubuntu0.1
https://launchpad.net/ubuntu/+source/ruby-nokogiri/1.10.0+dfsg1-2ubuntu0.1
https://launchpad.net/ubuntu/+source/ruby-nokogiri/1.8.2-1ubuntu0.1
https://launchpad.net/ubuntu/+source/ruby-nokogiri/1.6.7.2-3ubuntu0.1

Original Source

Url : http://www.ubuntu.com/usn/USN-4175-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-78 Improper Sanitization of Special Elements used in an OS Command ('OS Command Injection') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Os 4
Os 2

Alert History

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0
Date Informations
2019-11-05 17:18:51
  • First insertion