CVE-2019-8321

Description

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::UserInteraction#verbose calls say without escaping, escape sequence injection is possible.

CVSS Metrics

• v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
• v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.33%• Percentile: 56%

Techniques & Countermeasures

• CWE-88•Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

  The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.

Affected Systems

• debian•debian_linux

  9.0

• opensuse•leap

  15.0 | 15.1

• rubygems•rubygems

  ≥ 2.6.0, ≤ 3.0.2

References (3)

• https://hackerone.com/reports/317330
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
• https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html