OS Command Injection Affecting ruby-nokogiri package, versions *


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    1.75% (89th percentile)

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  • Snyk ID SNYK-DEBIAN9-RUBYNOKOGIRI-459379
  • published 15 Aug 2019
  • disclosed 16 Aug 2019

How to fix?

There is no fixed version for Debian:9 ruby-nokogiri.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-nokogiri package and not the ruby-nokogiri package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a subprocess via Ruby's Kernel.open method. Processes are vulnerable only if the undocumented method Nokogiri::CSS::Tokenizer#load_file is being called with unsafe user input as the filename. This vulnerability appears in code generated by the Rexical gem versions v1.0.6 and earlier. Rexical is used by Nokogiri to generate lexical scanner code for parsing CSS queries. The underlying vulnerability was addressed in Rexical v1.0.7 and Nokogiri upgraded to this version of Rexical in Nokogiri v1.10.4.

CVSS Scores

version 3.1
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NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

8.1 high