CVE-2025-12818 - PostgreSQL libpq undersizes allocations, via integer wraparound

CVE-2025-12818 - PostgreSQL libpq undersizes allocations, via integer wraparound

https://cvefeed.io/rssfeed/latest.atom / Thu, 11/13/2025 - 16:48
CVE ID : CVE-2025-12818
Published : Nov. 13, 2025, 1:15 p.m. | 44 minutes ago
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.
Severity: 5.9 | MEDIUM
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