Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group). In affected versions specific DATA submessages can be sent to a discovery locator which may trigger a free error. This can remotely crash any Fast-DDS process. The call to free() could potentially leave the pointer in the attackers control which could lead to a double free. This issue has been addressed in versions 2.12.0, 2.11.3, 2.10.3, and 2.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Published 2023-10-16 21:15:11
Updated 2023-11-28 01:15:07
Source GitHub, Inc.
View at NVD,
Vulnerability category: Memory Corruption

Exploit prediction scoring system (EPSS) score for CVE-2023-42459

Probability of exploitation activity in the next 30 days EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-42459

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
GitHub, Inc.

CWE ids for CVE-2023-42459

  • The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.
    Assigned by: (Primary)
  • Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
    Assigned by: (Primary)
  • The product calls free() on a pointer to memory that was not allocated using associated heap allocation functions such as malloc(), calloc(), or realloc().
    Assigned by: (Primary)

References for CVE-2023-42459

Products affected by CVE-2023-42459

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