DEBIAN-CVE-2025-62603

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Source
https://security-tracker.debian.org/tracker/CVE-2025-62603
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-62603.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-62603
Upstream
Published
2026-02-03T20:15:56.787Z
Modified
2026-02-19T17:20:32.810534Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group ). ParticipantGenericMessage is the DDS Security control-message container that carries not only the handshake but also on going security-control traffic after the handshake, such as crypto-token exchange, rekeying, re-authentication, and token delivery for newly appearing endpoints. On receive, the CDR parser is invoked first and deserializes the message_data (i .e., the DataHolderSeq) via the readParticipantGenericMessage → readDataHolderSeq path. The DataHolderSeq is parsed sequentially: a sequence count (uint32), and for each DataHolder the class_id string (e.g. DDS:Auth:PKI-DH:1.0+Req), string properties (a sequence of key/value pairs), and binary properties (a name plus an octet-vector). The parser operat es at a stateless level and does not know higher-layer state (for example, whether the handshake has already completed), s o it fully unfolds the structure before distinguishing legitimate from malformed traffic. Because RTPS permits duplicates, delays, and retransmissions, a receiver must perform at least minimal structural parsing to check identity and sequence n umbers before discarding or processing a message; the current implementation, however, does not "peek" only at a minimal header and instead parses the entire DataHolderSeq. As a result, prior to versions 3.4.1, 3.3.1, and 2.6.11, this parsi ng behavior can trigger an out-of-memory condition and remotely terminate the process. Versions 3.4.1, 3.3.1, and 2.6.11 p atch the issue.

References

Affected packages

Debian:11 / fastdds

Package

Name
fastdds
Purl
pkg:deb/debian/fastdds?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.1.0+ds-9
2.1.0+ds-9+deb11u1
2.3.2+ds-1
2.3.2+ds-2
2.3.3+ds-1
2.3.4+ds-1
2.3.4+ds-2
2.3.4+ds-3
2.3.4+ds-4
2.4.0+ds-1
2.4.0+ds-2
2.4.0+ds-3
2.4.1+ds-1
2.5.0+ds-1
2.5.0+ds-2
2.5.0+ds-3
2.5.1+ds-1
2.6.0+ds-1
2.6.0+ds-2
2.6.0+ds-3
2.6.1+ds-1
2.6.1+ds-2
2.7.0+ds-1
2.7.0+ds-2
2.7.1+ds-1~bpo11+1
2.7.1+ds-1
2.8.0+ds-1
2.8.0+ds-2
2.8.1+ds-1
2.9.0+ds-1
2.9.0+ds-2
2.9.1+ds-1
2.10.1+ds-1
2.10.1+ds-2
2.10.1+ds-3
2.11.2+ds-1
2.11.2+ds-2
2.11.2+ds-3
2.11.2+ds-4
2.11.2+ds-5
2.11.2+ds-6
2.11.2+ds-6.1~exp1
2.11.2+ds-6.1
2.14.0+ds-1
2.14.0+ds-2
2.14.0+ds-3
2.14.0+ds-4
2.14.1+ds-1
2.14.2+ds-1
2.14.3+ds-1
3.*
3.0.0+ds-1
3.0.0+ds-2
3.0.0+ds-3
3.0.1+ds-1
3.1.0+ds-1
3.1.0+ds-2
3.1.2+ds-1
3.3.0+ds-1
3.3.0+ds-2
3.3.0+ds-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-62603.json"

Debian:12 / fastdds

Package

Name
fastdds
Purl
pkg:deb/debian/fastdds?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.9.1+ds-1
2.9.1+ds-1+deb12u1
2.9.1+ds-1+deb12u2
2.10.1+ds-1
2.10.1+ds-2
2.10.1+ds-3
2.11.2+ds-1
2.11.2+ds-2
2.11.2+ds-3
2.11.2+ds-4
2.11.2+ds-5
2.11.2+ds-6
2.11.2+ds-6.1~exp1
2.11.2+ds-6.1
2.14.0+ds-1
2.14.0+ds-2
2.14.0+ds-3
2.14.0+ds-4
2.14.1+ds-1
2.14.2+ds-1
2.14.3+ds-1
3.*
3.0.0+ds-1
3.0.0+ds-2
3.0.0+ds-3
3.0.1+ds-1
3.1.0+ds-1
3.1.0+ds-2
3.1.2+ds-1
3.3.0+ds-1
3.3.0+ds-2
3.3.0+ds-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-62603.json"

Debian:13 / fastdds

Package

Name
fastdds
Purl
pkg:deb/debian/fastdds?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.2+ds-1
3.3.0+ds-1
3.3.0+ds-2
3.3.0+ds-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-62603.json"

Debian:14 / fastdds

Package

Name
fastdds
Purl
pkg:deb/debian/fastdds?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.2+ds-1
3.3.0+ds-1
3.3.0+ds-2
3.3.0+ds-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-62603.json"