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  5. CVE-2023-34149

CVE-2023-34149: Apache Struts vulnerable to memory exhaustion

June 14, 2023 (updated February 13, 2025)

Denial of service via out of memory (OOM) owing to not properly checking of list bounds. When a Multipart request has non-file normal form fields, Struts used to bring them into memory as Strings without checking their sizes. This could lead to OOM if developer has set struts.multipart.maxSize to a value equal or greater than the available memory.

Upgrade to Struts 2.5.31 or 6.1.2.1 or greater.

References

  • cwiki.apache.org/confluence/display/WW/S2-063
  • github.com/advisories/GHSA-8f6x-v685-g2xc
  • github.com/apache/struts
  • github.com/apache/struts/commit/2d6f1bc0a6f5ac575a56784ac6461816b67c4f21
  • github.com/apache/struts/releases/tag/STRUTS_2_5_31
  • github.com/apache/struts/releases/tag/STRUTS_6_1_2_1
  • nvd.nist.gov/vuln/detail/CVE-2023-34149
  • security.netapp.com/advisory/ntap-20230706-0005

Code Behaviors & Features

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Affected versions

All versions before 2.5.31, all versions starting from 6.0.0 before 6.1.2.1

Fixed versions

  • 2.5.31
  • 6.1.2.1

Solution

Upgrade to versions 2.5.31, 6.1.2.1 or above.

Impact 4.3 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-770: Allocation of Resources Without Limits or Throttling

Source file

maven/org.apache.struts/struts2-core/CVE-2023-34149.yml

Spotted a mistake? Edit the file on GitLab.

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