CVE-2023-28837 (GCVE-0-2023-28837)
Vulnerability from cvelistv5
Published
2023-04-03 16:41
Modified
2025-02-11 14:37
Severity ?
4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Wagtail is an open source content management system built on Django. Prior to versions 4.1.4 and 4.2.2, a memory exhaustion bug exists in Wagtail's handling of uploaded images and documents. For both images and documents, files are loaded into memory during upload for additional processing. A user with access to upload images or documents through the Wagtail admin interface could upload a file so large that it results in a crash of denial of service. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. It can only be exploited by admin users with permission to upload images or documents. Image uploads are restricted to 10MB by default, however this validation only happens on the frontend and on the backend after the vulnerable code. Patched versions have been released as Wagtail 4.1.4 and Wagtail 4.2.2). Site owners who are unable to upgrade to the new versions are encouraged to add extra protections outside of Wagtail to limit the size of uploaded files.
References
security-advisories@github.com https://docs.wagtail.org/en/stable/reference/settings.html#wagtailimages-max-upload-size Product
security-advisories@github.com https://github.com/wagtail/wagtail/commit/3c0c64642b9e5b8d28b111263c7f4bddad6c3880 Patch
security-advisories@github.com https://github.com/wagtail/wagtail/commit/c9d2fcd650a88d76ae122646142245e5927a9165 Release Notes
security-advisories@github.com https://github.com/wagtail/wagtail/commit/cfa11bbe00dbe7ce8cd4c0bbfe2a898a690df2bf Patch
security-advisories@github.com https://github.com/wagtail/wagtail/commit/d4022310cbe497993459c3136311467c7ac6329a Release Notes
security-advisories@github.com https://github.com/wagtail/wagtail/releases/tag/v4.1.4 Release Notes
security-advisories@github.com https://github.com/wagtail/wagtail/releases/tag/v4.2.2 Release Notes
security-advisories@github.com https://github.com/wagtail/wagtail/security/advisories/GHSA-33pv-vcgh-jfg9 Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://docs.wagtail.org/en/stable/reference/settings.html#wagtailimages-max-upload-size Product
af854a3a-2127-422b-91ae-364da2661108 https://github.com/wagtail/wagtail/commit/3c0c64642b9e5b8d28b111263c7f4bddad6c3880 Patch
af854a3a-2127-422b-91ae-364da2661108 https://github.com/wagtail/wagtail/commit/c9d2fcd650a88d76ae122646142245e5927a9165 Release Notes
af854a3a-2127-422b-91ae-364da2661108 https://github.com/wagtail/wagtail/commit/cfa11bbe00dbe7ce8cd4c0bbfe2a898a690df2bf Patch
af854a3a-2127-422b-91ae-364da2661108 https://github.com/wagtail/wagtail/commit/d4022310cbe497993459c3136311467c7ac6329a Release Notes
af854a3a-2127-422b-91ae-364da2661108 https://github.com/wagtail/wagtail/releases/tag/v4.1.4 Release Notes
af854a3a-2127-422b-91ae-364da2661108 https://github.com/wagtail/wagtail/releases/tag/v4.2.2 Release Notes
af854a3a-2127-422b-91ae-364da2661108 https://github.com/wagtail/wagtail/security/advisories/GHSA-33pv-vcgh-jfg9 Mitigation, Vendor Advisory
Impacted products
Vendor Product Version
wagtail wagtail Version: < 4.1.4
Version: >= 4.2, < 4.2.2
 Create a notification for this product.
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\"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"wagtail\", \"product\": \"wagtail\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 4.1.4\"}, {\"status\": \"affected\", \"version\": \"\u003e= 4.2, \u003c 4.2.2\"}]}], \"references\": [{\"url\": \"https://github.com/wagtail/wagtail/security/advisories/GHSA-33pv-vcgh-jfg9\", \"name\": \"https://github.com/wagtail/wagtail/security/advisories/GHSA-33pv-vcgh-jfg9\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/wagtail/wagtail/commit/3c0c64642b9e5b8d28b111263c7f4bddad6c3880\", \"name\": \"https://github.com/wagtail/wagtail/commit/3c0c64642b9e5b8d28b111263c7f4bddad6c3880\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/wagtail/wagtail/commit/c9d2fcd650a88d76ae122646142245e5927a9165\", \"name\": \"https://github.com/wagtail/wagtail/commit/c9d2fcd650a88d76ae122646142245e5927a9165\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/wagtail/wagtail/commit/cfa11bbe00dbe7ce8cd4c0bbfe2a898a690df2bf\", \"name\": \"https://github.com/wagtail/wagtail/commit/cfa11bbe00dbe7ce8cd4c0bbfe2a898a690df2bf\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/wagtail/wagtail/commit/d4022310cbe497993459c3136311467c7ac6329a\", \"name\": \"https://github.com/wagtail/wagtail/commit/d4022310cbe497993459c3136311467c7ac6329a\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://docs.wagtail.org/en/stable/reference/settings.html#wagtailimages-max-upload-size\", \"name\": \"https://docs.wagtail.org/en/stable/reference/settings.html#wagtailimages-max-upload-size\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/wagtail/wagtail/releases/tag/v4.1.4\", \"name\": \"https://github.com/wagtail/wagtail/releases/tag/v4.1.4\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/wagtail/wagtail/releases/tag/v4.2.2\", \"name\": \"https://github.com/wagtail/wagtail/releases/tag/v4.2.2\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Wagtail is an open source content management system built on Django. Prior to versions 4.1.4 and 4.2.2, a memory exhaustion bug exists in Wagtail\u0027s handling of uploaded images and documents. For both images and documents, files are loaded into memory during upload for additional processing. A user with access to upload images or documents through the Wagtail admin interface could upload a file so large that it results in a crash of denial of service.\\n\\nThe vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. It can only be exploited by admin users with permission to upload images or documents.\\n\\nImage uploads are restricted to 10MB by default, however this validation only happens on the frontend and on the backend after the vulnerable code. \\n\\nPatched versions have been released as Wagtail 4.1.4 and Wagtail 4.2.2). Site owners who are unable to upgrade to the new versions are encouraged to add extra protections outside of Wagtail to limit the size of uploaded files.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400: Uncontrolled Resource Consumption\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-770\", \"description\": \"CWE-770: Allocation of Resources Without Limits or Throttling\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2023-04-03T16:41:19.467Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-28837\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-11T14:37:06.278Z\", \"dateReserved\": \"2023-03-24T16:25:34.465Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-04-03T16:41:19.467Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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