Leaky pipes are unfortunately quite common in the winter. The freezing and thawing of water in the pipes causes them to expand, which may force a pipe to burst open. Other factors can contribute to leaky pipes too, of course, such as corrosion or other means of excess pressure on the pipes.
For the most part, a homeowner is not most concerned with how a leak happened. It’s important to know whether corrosion indicates your pipes are in need of replacement, but the first thing you want to know is how to stop the leak and get things under control.