Unless I'm missing something (quite likely), I don't see mention of the OSS in either features or specifications on Sony's link for the kit. But going to their link for just the lens it does mention OSS under features. I also think it's a mistake in the B&H listing and have written them to confirm it. Will let you know once I've heard back.
Well here's the reply from a B&H rep. He says the lens does have OSS but if you follow his link, you'll see no mention of the kit lens having OSS and under the specs, image stabilization states "No" although that is an error. (B&H needs to work on their website).
Thank you for contacting the Photography department at B&H Photo Video and Pro Audio.
As per my search, the kit viewable at the following link: