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CVE-2019-8320

Status Candidate

Overview

A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user's machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.

Related Files

Red Hat Security Advisory 2019-1429-01
Posted Jun 11, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1429-01 - Red Hat CloudForms Management Engine delivers the insight, control, and automation needed to address the challenges of managing virtual environments. CloudForms Management Engine is built on Ruby on Rails, a model-view-controller framework for web application development. Action Pack implements the controller and the view components. Issues addressed include a code execution vulnerability.

tags | advisory, web, code execution, ruby
systems | linux, redhat
advisories | CVE-2019-8320, CVE-2019-8321, CVE-2019-8322, CVE-2019-8323, CVE-2019-8324, CVE-2019-8325
MD5 | 5dbb87bf3615304eefd98fbdea5c6415
Red Hat Security Advisory 2019-1148-01
Posted May 13, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1148-01 - Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Issues addressed include a code execution vulnerability.

tags | advisory, code execution, ruby
systems | linux, redhat
advisories | CVE-2019-8320, CVE-2019-8321, CVE-2019-8322, CVE-2019-8323, CVE-2019-8324, CVE-2019-8325
MD5 | 4560d64078bfdee7f7a2509009bff461
Red Hat Security Advisory 2019-1150-01
Posted May 13, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1150-01 - Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Issues addressed include a code execution vulnerability.

tags | advisory, code execution, ruby
systems | linux, redhat
advisories | CVE-2019-8320, CVE-2019-8321, CVE-2019-8322, CVE-2019-8323, CVE-2019-8324, CVE-2019-8325
MD5 | 691a5e378dc4015bfc5e03a1c1e9292b
Debian Security Advisory 4433-1
Posted Apr 17, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4433-1 - Several vulnerabilities have been discovered in the Rubygems included in the interpreter for the Ruby language, which may result in denial of service or the execution of arbitrary code.

tags | advisory, denial of service, arbitrary, vulnerability, ruby
systems | linux, debian
advisories | CVE-2019-8320, CVE-2019-8321, CVE-2019-8322, CVE-2019-8323, CVE-2019-8324, CVE-2019-8325
MD5 | cde89a6b98e0742a91f9ce6c76c269a6
Ubuntu Security Notice USN-3945-1
Posted Apr 12, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3945-1 - It was discovered that Ruby incorrectly handled certain RubyGems. An attacker could possibly use this issue to execute arbitrary commands. It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code.

tags | advisory, arbitrary, ruby
systems | linux, ubuntu
advisories | CVE-2019-8320, CVE-2019-8324
MD5 | e31c0b3ee67169a56b90d68e0524ec93
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