Augur is migrating to a new contract

As Augur is deploying its contracts to the main Ethereum network, REP token balances will be migrated to a new REP token contract on July 9
30 May 2018   1041

Augur deployment on the main Ethereum network will require the migration of all current REP token balances to a new REP token contract. It will happen on July 9. The automatic migration of REP balances will kick off with an indefinite freeze of the current REP token contract. The new token contract will be placed inside the genesis Augur universe.

REP holders and users of exchanges (centralized or non-custodial decentralized) don't need to take any actions to prepare for the migration. For special kinds of exchanges like EtherDelta, ForkDelta, IDEX and OasisDEX the users are advised to withdraw their REP funds from the exchange contract until July 9.

The migration should not take more than a few hours, and once Augur is deployed and migration is finalized, the platform goes live on the main Ethereum network. As for the market parameters of Augur, at the moment of publication they are as follows:

Average price 38.88 USD
Market cap 427,666,800 USD
Volume (24H) 24,545,100 USD

Constantinople to be Postponed

Ethereum's hardfork will be late due to critical vulnerability found
16 January 2019   79

A scheduled upgrade of the Ethereum network called Constantinople was postponed indefinitely after a critical vulnerability was discovered in one of the improvements, CoinDesk reports.

This is a vulnerability in EIP-1283, which, as identified by the audit company SmartSecurity smart contracts, gave hackers the opportunity to steal user funds.

During a video conference on Tuesday with the participation of Ethereum developers and other clients and projects working on the network, it was decided to temporarily postpone the activation of the hard forks.

In particular, Vitaly Buterin, developers Hudson Jameson, Nick Johnson and Evan van Ness, as well as release manager of Parity Afri Shoedon took part in the meeting. Discussing the revealed vulnerability, they agreed that it would be impossible to eliminate it before the appointed time for hardfork (around 04:00 UTC on January 17).

A vulnerability, called a reentrancy attack, allows an attacker to repeatedly enter the same function and infinitely withdraw funds.

Imagine that my contract has a function which makes a call to another contract… If I’m a hacker and I’m able to trigger function a while the previous function was still executing, I might be able to withdraw funds.
 

Joanes Espanol

CTO, blockchain analytics firm Amberdata

According to him, this is a lot like the vulnerabilities that were discovered in The DAO in the summer of 2016.

Representatives of ChainSecurity also noted that up to the Constantinople hard fork, data storage on the network cost 5,000 units of gas, which exceeds the 2,300 gas usually needed to call the “transfer” and “send” functions. After the upgrade, “dirty” storage operations will cost 200 units of gas, and an attacking contract can use 2,300 gas to successfully manipulate the variables of vulnerable contracts.

New date of hardfork not yet determined.