The second link doesn't mention "as-is", the first one does. I'll assume that's what you meant. It says,
> Though manufacturers cannot so easily escape liability, sellers can escape liability by informing the customer before the purchase that a product must be taken "as-is,” which means how the product was found when it was purchased in-store. “As-is” works because the buyer has an opportunity to inspect the product and decide whether to buy it given its condition.
On that analogy, Github and RedHat aren't liable, but the original author of the software still is.
> Though manufacturers cannot so easily escape liability, sellers can escape liability by informing the customer before the purchase that a product must be taken "as-is,” which means how the product was found when it was purchased in-store. “As-is” works because the buyer has an opportunity to inspect the product and decide whether to buy it given its condition.
On that analogy, Github and RedHat aren't liable, but the original author of the software still is.