CVE-2021-3779: Externally Controlled Reference to a Resource in Another Sphere in ruby-mysql

June 29, 2022 (updated July 5, 2022)

A malicious MySQL server can request local file content from a client using ruby-mysql prior to version 2.10.0 without explicit authorization from the user. This issue was resolved in version 2.10.0 and later.

References

github.com/advisories/GHSA-73pr-g6jj-5hc9
nvd.nist.gov/vuln/detail/CVE-2021-3779
www.rapid7.com/blog/post/2022/06/28/cve-2021-3779-ruby-mysql-gem-client-file-read-fixed/

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