Home Coins Zcash (ZEC) Heartwood safety evaluation turns up no main points

Heartwood safety evaluation turns up no main points


There’s at all times so much occurring with the ECC safety workforce, and the previous few months have been no exception.

A latest Heartwood safety evaluation carried out by unbiased agency Path of Bits, revealed no main points within the implementation of NU3 ZIPs. The ultimate report was handed over Might 6, and we’re making it publicly accessible now. It’s also accessible from Path of Bits’ Github. 

The ECC workforce was impressed with ToB’s depth of information, and so they have been even in a position to carry out some further basic application-security-assurance actions as a value-add, which was drastically appreciated by our ECC workforce. 

Thanks, Path of Bits, for one more profitable engagement.

Outcomes and response

We obtained some recommendation on fuzzing and we’re operating with it. Different work that coincided with the engagement revealed {that a} completely different strategy was wanted, additional validating the transfer to libfuzzer and away from AFL. We discovered it was potential to reuse a considerable a part of the hassle that had already been put in, however I’m planning on writing a extra in-depth evaluate of our fuzzing efforts in an upcoming weblog submit, so I’ll save the small print for then.

Taylor Hornby and Daira Hopwood did some additional evaluation of a test_bitcoin ASAN problem and found that the use-after-free was an issue within the scheduler code itself. However it might solely manifest if the scheduler service queue for a similar scheduler object was entered in two separate threads — a situation that by no means happens in any bitcoin-derived coin that we might consider, together with zcashd. We’re monitoring the advance as ticket #4569.

Ought to we proceed with these assessments?

After this newest evaluation, we mentioned whether or not we must always proceed to fund exterior safety assessments for all ZIPs, no matter their complexity or most threat to the community.

We’re very fortunate to have a few of the high consultants in cryptography working right here, however after contemplating the implications of any system the place we try to categorize which ZIPs ought to and shouldn’t obtain exterior safety evaluation, and in recognition of the necessity to increase the Zcash ecosystem in a method that gives assurance to customers, it was determined that we might proceed our coverage of exterior safety evaluation of every ZIP. In truth, we plan to increase the scope of safety assessments to incorporate at the very least delicate fork consensus modifications which were made between community upgrades.



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