Dei Verbum states:
107. The inspired books teach the truth. "Since therefore ALL that the inspired authors or sacred writers affirm should be regarded as affirmed by the Holy Spirit, we must acknowledge that the books of Scripture firmly, faithfully, and without error teach that truth which God, for the sake of our salvation, wished to see confided to the Sacred Scriptures." [Vatican II DV 11]
This statement itself is prone to multiple interpretations with the Roman community. Conservative Roman Catholic apologists see this as a clear statement that the entirety of Scripture is without error. Some Roman Catholic scholars though (like R.A.F. MacKenzie and Raymond Brown) see the phrase “for the sake of our salvation” as limiting inerrency to only those sections of Scripture that teach about salvation.
Eric Svendsen notes, “No one can tell us what the ‘official’ Roman Catholic teaching is on this issue, and Rome’s ‘infallible interpreter’ is of absolutely no advantage to the Roman Catholic apologist, for he has remained silent on the matter. [Source: Eric Svendsen, Upon This Slippery Rock, 24]. Thus, the actual teachings of the Roman Catholic Church are prone to interpretation. The Catholic apologist must use his own private interpretation to determine what the meaning of Roman Catholic teaching is. The conservative and liberal Roman Catholic can read the same document and come to two differing opinions.
So on a fundamental issue- what are, or are not, the very Words of God, Catholics are not unified.
Jimmy Akin has an update here: Biblical Inerrancy Under Discussion! Your Prayers Needed! On the statement from Dei Verbum, Akin states, "the bottom line is that it is not as clear as it should be and is basically a compromise text worked out at the council between parties on different sides of the debate."
"When the 2008 synod of bishops came around, I was quite concerned how this topic would be handled, because while the synod is a function of the magisterium and thus is guided by the Holy Spirit, we do not have a guarantee of its infallibility. Consequently, though human weakness, the synod could conceivably have muddled the waters on this question even further or, God forbid, said something false regarding biblical inerrancy."
But Akin says things look good that the Bible may actually be finally clearly declared inerrant. According to Akin, another chunk of the big showdown on this topic will be May 2-6. He covets your prayers for Rome as they try to continue to determine if the Bible is inerrant. Akin states,
"It may be some time—years even—before we see what the PBC comes up with (if we ever see it), but the issue of biblical inerrancy is an important one."
Yeah, it's much easier to declare John Paul II a saint than to figure out if the Bible is inerrant.