[arch-general] SLOB Allocator Vulernability

Karol Blazewicz karol.blazewicz at gmail.com
Sun Mar 23 14:58:10 EDT 2014


On Sun, Mar 23, 2014 at 7:36 PM, Kyle Bassett <kylebassett at gmail.com> wrote:
> Thanks Mark!  Great read!
>
> I love real-world examples included with any type of lesson.
>
> On Sunday, March 23, 2014, Mark Lee <mark at markelee.com> wrote:
>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA256
>>
>> Salutations,
>>
>> I recently read an interesting article on a Slob allocator
>> vulnerability in the Linux kernel. It was an interesting read so I am
>> reposting it for you all.
>>
>> <
>> http://resources.infosecinstitute.com/exploiting-linux-kernel-heap-corruptions-slub-allocator/
>> >
>>
>> Regards,
>> Mark
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>> iF4EAREIAAYFAlMvJC4ACgkQZ/Z80n6+J/a1IQD+OaIhObNMWJkLXxv5zjb47802
>> nmEoMdpmFzXcFLxdaS8A/2gTP9l0l+wGVPs9nko6/wF3hAMnF0qKNlFyL8yXZpon
>> =+tvh
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>>


I think it's about SLUB, not SLOB vulnerability.
The last line says "So it is easy to spot that there is a heap SLUB
overflow if a user writes data greater in size than 256 bytes."


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