Rapid7 VulnDB

Ubuntu: USN-3528-1 (CVE-2017-17790): Ruby vulnerabilities

Back to Search

Ubuntu: USN-3528-1 (CVE-2017-17790): Ruby vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
12/20/2017
Created
07/25/2018
Added
01/11/2018
Modified
05/03/2019

Description

The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.

Solution(s)

  • ubuntu-upgrade-libruby1-9-1
  • ubuntu-upgrade-libruby2-3
  • ubuntu-upgrade-ruby1-9-1
  • ubuntu-upgrade-ruby1-9-3
  • ubuntu-upgrade-ruby2-3

References

  • ubuntu-upgrade-libruby1-9-1
  • ubuntu-upgrade-libruby2-3
  • ubuntu-upgrade-ruby1-9-1
  • ubuntu-upgrade-ruby1-9-3
  • ubuntu-upgrade-ruby2-3

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;