Liftoff!

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A mobile client for Lemmy running on iOS and Android

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Is Liftoff safe regarding the libwebp exploit? (lemmy.world)

submitted 1 year ago by [email protected] to c/[email protected]

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I recently saw an article (https://stackdiary.com/heap-buffer-overflow-in-libwebp-cve-2023-5129/) that said WEBP images could be a huge security hole right now and I know Lemmy uses a lot of WEBP images.

I'm not sure how long this has been known, so maybe the Liftoff devs already took care of it. Does anyone know if Liftoff has already made the necessary patches?

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[–] [email protected] 1 points 1 year ago* (last edited 1 year ago)

I must disagree. The information is public and there are many sources that describe how to construct such a file that can trigger the heap buffer overflow. You don't need to understand all the theory to cause the overflow.

I don't think it's that complicated. I'm sure it will be used as an N-day for a long time.

The key to effective exploitation is learning to understand deeply only those parts that require deep understanding.