Code: QTN2QT(QTNode *in)
{
	TSQuery		out;
	int			len;
	int			sumlen = 0,
				nnode = 0;
 	QTN2QTState state;
 
 	cntsize(in, &sumlen, &nnode);
 	len = COMPUTESIZE(nnode, sumlen);
 
 	out = (TSQuery) palloc0(len);
	SET_VARSIZE(out, len);
	out->size = nnode;

	state.curitem = GETQUERY(out);
	state.operand = state.curoperand = GETOPERAND(out);

	fillQT(&state, in);
	return out;
}

Vulnerability Type: Overflow 
CWE ID: CWE-189
Summary: Multiple integer overflows in contrib/hstore/hstore_io.c in PostgreSQL 9.0.x before 9.0.16, 9.1.x before 9.1.12, 9.2.x before 9.2.7, and 9.3.x before 9.3.3 allow remote authenticated users to have unspecified impact via vectors related to the (1) hstore_recv, (2) hstore_from_arrays, and (3) hstore_from_array functions in contrib/hstore/hstore_io.c; and the (4) hstoreArrayToPairs function in contrib/hstore/hstore_op.c, which triggers a buffer overflow.  NOTE: this issue was SPLIT from CVE-2014-0064 because it has a different set of affected versions.
Commit Message: Predict integer overflow to avoid buffer overruns.

Several functions, mostly type input functions, calculated an allocation
size such that the calculation wrapped to a small positive value when
arguments implied a sufficiently-large requirement.  Writes past the end
of the inadvertent small allocation followed shortly thereafter.
Coverity identified the path_in() vulnerability; code inspection led to
the rest.  In passing, add check_stack_depth() to prevent stack overflow
in related functions.

Back-patch to 8.4 (all supported versions).  The non-comment hstore
changes touch code that did not exist in 8.4, so that part stops at 9.0.

Noah Misch and Heikki Linnakangas, reviewed by Tom Lane.

Security: CVE-2014-0064