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  1. Core Server
  2. SERVER-36993

mongod crash: Invariant failure indexedOr src/mongo/db/query/index_tag.cpp 237

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    • Fully Compatible
    • ALL
    • v4.0, v3.6
    • Query 2018-09-24

      CVE-2018-20802

      Title: Post-auth queries on compound index may crash mongod

      Description:
      A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries with compound indexes affecting QueryPlanner. This issue affects: MongoDB Inc. MongoDB Server v4.0 versions prior to 4.0.3; v3.6 versions prior to 3.6.9.

      CVSS score:
      This issue's CVSS:3.1 severity is scored at 6.5 using the following scoring metrics:
      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

      Affected versions:
      MongoDB Inc. MongoDB Server v4.0 versions prior to 4.0.3; v3.6 versions prior to 3.6.9.

      CWE: CWE-394: Unexpected Status Code or Return Value

      —
      Opening to discuss the security impact of SERVER-36993, which affects 3.6.3 and later. This issue was externally identified and reported.

      I believe this exploit can used in a denial of service attack against atlas free tier.

            Assignee:
            david.storch@mongodb.com David Storch
            Reporter:
            travis@bryx.com Travis Brown
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              Created:
              Updated:
              Resolved: