vulnerability
Ubuntu: USN-4882-1 (CVE-2020-10933): Ruby vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | May 4, 2020 | Mar 19, 2021 | Aug 18, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
May 4, 2020
Added
Mar 19, 2021
Modified
Aug 18, 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.
Solutions
ubuntu-upgrade-libruby2-5ubuntu-upgrade-libruby2-7ubuntu-upgrade-ruby2-5ubuntu-upgrade-ruby2-7
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