Tracker / CVE-2020-10933
CVE-2020-10933
Medium 5.3
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.
Affected products and versions
| debian | debian_linux |
|---|---|
| fedoraproject | fedora |
| ruby-lang | ruby |
| ruby-lang | ruby · 2.5.0 → 2.5.7 |
| ruby-lang | ruby · 2.6.0 → 2.6.5 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.