Messages in this thread | | | Date | Wed, 30 Aug 2023 17:18:05 +0200 | From | Pablo Neira Ayuso <> | Subject | Re: [PATCH nf] netfilter/xt_u32: validate user space input |
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On Mon, Aug 28, 2023 at 10:21:07AM -0300, Wander Lairson Costa wrote: > The xt_u32 module doesn't validate the fields in the xt_u32 structure. > An attacker may take advantage of this to trigger an OOB read by setting > the size fields with a value beyond the arrays boundaries. > > Add a checkentry function to validate the structure. > > This was originally reported by the ZDI project (ZDI-CAN-18408).
Applied to nf, thanks
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