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Fedora 38 Moderate: Rubygem-Redcarpet XSS Issue Advisory 2023-44daa9c1d4

fedora
Calendar Grey May 9, 2023
Dist Fedora Esm H88
Fedora 38 resolves an XSS vulnerability caused by inadequate HTML sanitization in rubygem-redcarpet through its most recent update.
A security flow was found on redcarpet that escaping html was not properly done even if requested on some cases which may cause XSS vulnerability

Summary

A fast, safe and extensible Markdown to (X)HTML parser.

A security flow was found on redcarpet that escaping html was not properly done

even if requested on some cases which may cause XSS vulnerability. This issue is

now assigned as CVE-2020-26298. This new rpm should fix this issue.

* Sun Apr 30 2023 Mamoru TASAKA - 3.3.2-26

- Bacckport upstream patch for CVE-2020-26298 (bug 1915370)

[ 1 ] Bug #1915371 - CVE-2020-26298 rubygem-redcarpet: does not escape HTML when processing quotes which could result in XSS vulnerability [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1915371

su -c 'dnf upgrade --advisory FEDORA-2023-44daa9c1d4' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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Change Log

References

Update Instructions

Product: Fedora 38
Version: 3.3.2
Release: 26.fc38
Summary: A fast, safe and extensible Markdown to (X)HTML parser

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