GHSA-vmwr-mc7x-5vc3

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Source
https://github.com/advisories/GHSA-vmwr-mc7x-5vc3
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vmwr-mc7x-5vc3/GHSA-vmwr-mc7x-5vc3.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-vmwr-mc7x-5vc3
Aliases
Related
Published
2024-08-22T16:40:46Z
Modified
2024-08-28T20:21:45.171839Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
REXML denial of service vulnerability
Details

Impact

The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes.

If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected.

Patches

The REXML gem 3.3.6 or later include the patch to fix the vulnerability.

Workarounds

Don't parse untrusted XMLs with tree parser API.

References

  • https://www.ruby-lang.org/en/news/2024/08/22/dos-rexml-cve-2024-43398/ : An announce on www.ruby-lang.org
References

Affected packages

RubyGems / rexml

Package

Name
rexml
Purl
pkg:gem/rexml

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.3.6

Affected versions

3.*

3.1.7.3
3.1.8
3.1.9
3.1.9.1
3.2.0
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.3.0
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5