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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2021-20330

Specific replication command with malformed oplog entries can crash secondaries

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Status
Published
Published
Updated
Assigning organization
mongodb

Description

An attacker with basic CRUD permissions on a replicated collection can run the applyOps command with specially malformed oplog entries, resulting in a potential denial of service on secondaries. This issue affects MongoDB Server v4.0 versions prior to 4.0.27; MongoDB Server v4.2 versions prior to 4.2.16; MongoDB Server v4.4 versions prior to 4.4.9.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

MongoDB Inc. MongoDB Server

Default version status: unaffected

  • 4.0 to < 4.0.27affected
  • 4.2 to < 4.2.16affected
  • 4.4 to < 4.4.9affected

References