Process termination via uninitialized DATA_FRAG pointers
Published Mar 6, 2024 · Updated Aug 2, 2024
Use-after-free in affected eProsima Fast DDS releases allows remote attackers to terminate a process with a malformed DATA_FRAG packet. In MessageReceiver::proc_Submsg_DataFrag, the invalid-payload return path leaves CacheChange_t payload pointers uninitialized, and destruction passes those values to free(). An unauthenticated attacker on an adjacent network can reach the UDP listener; the demonstrated consequence is a bad-free crash of the receiving process.
Summary
What happened
Use-after-free in affected eProsima Fast DDS releases allows remote attackers to terminate a process with a malformed DATA_FRAG packet. In MessageReceiver::proc_Submsg_DataFrag, the invalid-payload return path leaves CacheChange_t payload pointers uninitialized, and destruction passes those values to free(). An unauthenticated attacker on an adjacent network can reach the UDP listener; the demonstrated consequence is a bad-free crash of the receiving process.
The record
- CVE
- CVE-2023-50716
- Published
- Mar 6, 2024
- Updated
- Aug 2, 2024
- Vendor
- eProsima
- Product
- Fast DDS
- Classifications
- CWE-416, T1499
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 6, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record 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=>= 2.10.0, < 2.10.3
- Affected versionversion=>= 2.11.0, < 2.11.3
- Affected versionversion=>= 2.12.0, < 2.12.2
- Affected versionversion=< 2.6.7
What conditions does exploitation require?
What is affected?
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.
Public exploit references
- Scapy malformed DATA_FRAG packet proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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