According to the press release, Bitcoin Core V 0.16.3 wasdeliveredwith a fix for a denial-of-service [DoS] vulnerability. This vulnerability was expected reportedly to cause a crash of older versions of Bitcoin Core if theytriedprocesseda blockdealingsthat tries topayidenticalamountstwice.Asper the release, such blocksare oftensolelycreated by aminersincethey’reinvalid.So asto formsuch block, aminerwould beneededto burn a block of at least 12.5 Bitcoin [BTC]wortharound$80k as per the press reporting time.
The new update includes a feature that eliminatesa possiblecrash byenablingthe software packageto “quietly reject” invalid blocks created by miners.
An associate professorof computer science atCornell University named ‘Emin Gün Sirer’, told thatthe wholenetworkmaycrashfor fewermoneythan “aheapof entities wouldpay for a 0-day attack onseveral systems.” Eminaforesaidthat thereareseveral“motivated people”that wouldhave takenthis chanceto bring the network down.
According toCasabaSecurity co-founder ‘JasonGlassberg,’ the recent vulnerability found on Bitcoin Corepackagemay“take down the entire network.” He explained that the network crash “does not appear”to focus on users’ wallets,howeverwould rather “affect transactionswithin thesense thatthey can’tbe completed,”
Even Cobra Bitcoin, co-owner of Bitcoin.org,aforesaidthe recent issue in Bitcoin Core was a “veryshudderybug”that wouldhave affected a “huge chunk of the Bitcoin network.”