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GHSA-5866-49gr-22v4: REXML DoS vulnerability

Impact

The REXML gem before 3.3.2 has a DoS vulnerability when it parses an XML that has many entity expansions with SAX2 or pull parser API.

If you need to parse untrusted XMLs with SAX2 or pull parser API, you may be impacted to this vulnerability.

Patches

The REXML gem 3.3.3 or later include the patch to fix the vulnerability.

Workarounds

Don’t parse untrusted XMLs with SAX2 or pull parser API.

References

  • https://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml/ : This is a similar vulnerability
  • https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41946/: An announce on www.ruby-lang.org
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  1. GitHub Advisory Database
  2. GitHub Reviewed
  3. CVE-2024-41946

REXML DoS vulnerability

Moderate severity GitHub Reviewed Published Aug 1, 2024 in ruby/rexml • Updated Aug 2, 2024

Package

Affected versions

< 3.3.3

Description

Published to the GitHub Advisory Database

Aug 2, 2024

Severity

CVSS base metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses

GHSA ID

GHSA-5866-49gr-22v4

Source code

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