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CVE PROGRAM SOURCE RECORD1.7 Low

CVE-2025-64438

Fast-DDS: Unbounded GAP range triggers OOM DoS under RELIABLE QoS

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group ). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a remotely triggerable Out-of-Memory (OOM) denial-of-service exists in Fast -DDS when processing RTPS GAP submessages under RELIABLE QoS. By sending a tiny GAP packet with a huge gap range (`gapList .base - gapStart`), an attacker drives `StatefulReader::processGapMsg()` into an unbounded loop that inserts millions of s equence numbers into `WriterProxy::changes_received_` (`std::set`), causing multi-GB heap growth and process termination. No authentication is required beyond network reachability to the reader on the DDS domain. In environments without an RSS limit (non-ASan / unlimited), memory consumption was observed to rise to ~64 GB. Versions 3.4.1, 3.3.1, and 2.6.11 patch t he issue.

Affected products

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

eProsima Fast-DDS

Default version status: unaffected

  • 3.4.0 to < 3.4.1affected
  • 3.0.0 to < 3.3.1affected
  • 0 to < 2.6.11affected

References