Out-of-bounds read and thread crash via padding underflow
Published Mar 12, 2025 · Updated Mar 12, 2025
Integer underflow in Eclipse Cyclone DDS before 0.10.5 allows remote attackers to trigger out-of-bounds heap reads or crash a DDS thread. DDS_Security_Deserialize_OctetSeq and DDS_Security_Deserialize_String validate the unpadded sequence length, then subtract a larger four-byte-aligned size from the remaining-byte counter. An unauthenticated network peer can supply the buffer; over-read bytes enter an output structure, while a sufficiently large sequence length crashes the thread.
Summary
What happened
Integer underflow in Eclipse Cyclone DDS before 0.10.5 allows remote attackers to trigger out-of-bounds heap reads or crash a DDS thread. DDS_Security_Deserialize_OctetSeq and DDS_Security_Deserialize_String validate the unpadded sequence length, then subtract a larger four-byte-aligned size from the remaining-byte counter. An unauthenticated network peer can supply the buffer; over-read bytes enter an output structure, while a sufficiently large sequence length crashes the thread.
The record
- CVE
- CVE-2024-10838
- Published
- Mar 12, 2025
- Updated
- Mar 12, 2025
- Vendor
- The Eclipse Foundation
- Product
- Eclipse Cyclone DDS
- Classifications
- CWE-191, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 12, 2025CVE publishedPublication date reported by the CVE source.
- Mar 12, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <0.10.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream malformed key-material deserialization proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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