vulnerability

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

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
May 4, 2020
Added
Jul 10, 2020
Modified
Aug 15, 2025

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

debian-upgrade-ruby2-7
Title
NEW

Explore Exposure Command

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