ghsa-4g42-gqrg-4633
Vulnerability from github
Published
2023-06-14 09:30
Modified
2025-10-13 12:40
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Apache Struts vulnerable to memory exhaustion
Details

Denial of service via out of memory (OOM) owing to no sanity limit on normal form fields in multipart forms. 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 an 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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.struts:struts2-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.31"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.struts:struts2-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.1.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.apache.struts:struts-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.3.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "struts:struts"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-34396"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-14T20:16:52Z",
    "nvd_published_at": "2023-06-14T08:15:09Z",
    "severity": "HIGH"
  },
  "details": "Denial of service via out of memory (OOM) owing to no sanity limit on normal form fields in multipart forms. 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 an OOM if developer has set struts.multipart.maxSize to a value equal or greater than the available memory.\n\nUpgrade to Struts 2.5.31 or 6.1.2.1 or greater",
  "id": "GHSA-4g42-gqrg-4633",
  "modified": "2025-10-13T12:40:51Z",
  "published": "2023-06-14T09:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34396"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/struts/commit/2d6f1bc0a6f5ac575a56784ac6461816b67c4f21"
    },
    {
      "type": "WEB",
      "url": "https://cwiki.apache.org/confluence/display/WW/S2-064"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/struts"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/struts/releases/tag/STRUTS_2_5_31"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/struts/releases/tag/STRUTS_6_1_2_1"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20230706-0005"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2023/06/14/3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Struts vulnerable to memory exhaustion"
}


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