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symfony/error-handler

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Medium, CVSS 4.6PackagistPublished

    Exceptions displayed in non-debug configurations in Symfony

    CVE-2020-5274 · GHSA-m884-279h-32v2

    Affected
    • Packagist symfony/error-handler >= 4.4.0, < 4.4.4; >= 5.0.0, < 5.0.4
    Fixed in
    4.4.45.0.4· Vendor fix available
    Issue
    ----------- When ErrorHandler renders an exception HTML page, it uses un-escaped properties from the related Exception class to render the stacktrace. The security issue comes from the fact that the stacktraces were also displayed in non-debug environments. Resolution ---------- The ErrorHandler class now escapes all properties coming from the related Exception, and the stacktrace is not displayed anymore in non-debug environments. The patches for this issue are available here and here for branch 4.4. Credits ------- I would like to thank Luka Sikic for reporting & Yonel Ceruto and Jérémy Derussé for fixing the issue.

    Recommended action: Upgrade to 5.0.4 or 4.4.4 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →