Multiple stack-based buffer overflows in json parsing in PostgreSQL before 9.3.x before 9.3.10 and 9.4.x before 9.4.5 allow attackers to cause a denial of service (server crash) via unspecified vectors, which are not properly handled in (1) json or (2) jsonb values.
Exploitability
AV:NAC:LAu:NImpact
C:PI:NA:P6.4/AV:N/AC:L/Au:N/C:P/I:N/A:P