Rapid7 Vulnerability & Exploit Database

Ubuntu: USN-4882-1 (CVE-2020-10933): Ruby vulnerabilities

Back to Search

Ubuntu: USN-4882-1 (CVE-2020-10933): Ruby vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
05/04/2020
Created
03/23/2021
Added
03/19/2021
Modified
03/19/2021

Description

An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.

Solution(s)

  • ubuntu-upgrade-libruby2-3
  • ubuntu-upgrade-libruby2-5
  • ubuntu-upgrade-libruby2-7
  • ubuntu-upgrade-ruby2-3
  • ubuntu-upgrade-ruby2-5
  • ubuntu-upgrade-ruby2-7

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

;