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CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2025-12818

PostgreSQL libpq undersizes allocations, via integer wraparound

Description

Integer wraparound in multiple PostgreSQL libpq client library functions allows an application input provider or network peer to cause libpq to undersize an allocation and write out-of-bounds by hundreds of megabytes. This results in a segmentation fault for the application using libpq. Versions before PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 are affected.

Affected products

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

n/a PostgreSQL

Default version status: unaffected

  • 18 to < 18.1affected
  • 17 to < 17.7affected
  • 16 to < 16.11affected
  • 15 to < 15.15affected
  • 14 to < 14.20affected
  • 0 to < 13.23affected

References