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Debian: CVE-2020-10933: ruby2.5, ruby2.7 -- security update

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Debian: CVE-2020-10933: ruby2.5, ruby2.7 -- security update

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
05/04/2020
Created
07/11/2020
Added
07/10/2020
Modified
11/04/2022

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)

  • debian-upgrade-ruby2-5
  • debian-upgrade-ruby2-7

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