Mageia: 2020-0285 Moderate: Ruby Buffer Overflow Exposes Data
mageia
July 7, 2020
Updated ruby packages fix security vulnerability: An issue was discovered in Ruby through 2.5.7
Summary
Updated ruby packages fix security vulnerability:
An issue was discovered in Ruby through 2.5.7. 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 (CVE-2020-10933).
References
- https://bugs.mageia.org/show_bug.cgi?id=26409
- https://www.ruby-lang.org/en/news/2020/03/31/heap-exposure-in-socket-cve-2020-10933/
- https://www.ruby-lang.org/en/news/2020/03/31/ruby-2-5-8-released/
- https://www.cve.org/CVERecord?id=CVE-2020-10933
Resolution
SRPMS
- 7/core/ruby-2.5.8-21.mga7
PREVIOUS
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Severity
important
Lowest
Low
Medium
High
Critical
Publication date: 07 Jul 2020
URL: https://advisories.mageia.org/MGASA-2020-0285.html
Type: security
CVE: CVE-2020-10933
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