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CVE-2019-5477

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 202006-05
Posted Jun 12, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202006-5 - Nokogiri has a vulnerability allowing arbitrary execution of code if a certain function is used. Versions less than 1.10.4 are affected.

tags | advisory, arbitrary
systems | linux, gentoo
advisories | CVE-2019-5477
SHA-256 | fe706b5cd1f7c3d26edf3fa83ca52b5a960c468f4a38d9813375887a04b2e097
Download | Favorite | View
Ubuntu Security Notice USN-4175-1
Posted Nov 5, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4175-1 - It was discovered that Nokogiri incorrectly handled inputs. A remote attacker could possibly use this issue to execute arbitrary OS commands.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-5477
SHA-256 | a2e1e51c35eafb2241a9982ad73256727df781cc09219462ad915418b1623a40
Download | Favorite | View
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