Approval Verification

Lines of code Vulnerability details Impact There is a great need for approval check before commencement of token transfer and clearing of excess approvals after token transfer has been done, to prevent potential third-party exploitation that could drain funds from unsuspecting users via the...

The delegator process occurs even if the source and target have the same address.

Lines of code Vulnerability details Impact The ERC20MultiDelegate contract allows a ENS token holder to either: Case1: Transfer tokens from sources to targets to delegate votes, OR Case2: Get reimbursed from sources and burn their votes OR Case3: Deploy a proxy delegate contract to transfer token...

amount could still have some dust left

Lines of code Vulnerability details Impact Amount can still remain after transfer process that can lead unbalancing of length between sources, targets and amount that can lead to unexpected behavior. Proof of Concept There is no means to check inside delegateMulti function that either all amount ...

cURL SOCKS5 Heap Overflow Vulnerability

cURL is a network data transfer project. Usually when we say cURL, we mean the cURL command line tool. cURL's underlying use is the libcurl library. A heap overflow vulnerability exists in cURL SOCKS5, which can be exploited by an attacker to construct a malicious hostname and cause code executio...

Tokens could be stolen by specifying an unauthorized address.

Lines of code Vulnerability details Impact transferBetweenDelegators transfers tokens between proxy contract addresses without any validation. Tokens could be stolen by specifying an unauthorized address. Proof of Concept The issue with transferBetweenDelegators occurs here as we can see: functio...

No validation allows unauthorized voting power transfer by any user.

Lines of code Vulnerability details Impact There is no check that the msg.sender is allowed to delegate votes on behalf of the sources. Any user could call delegateMulti and transfer voting power from other addresses. There should be a require statement to ensure msg.sender owns the tokens they a...

Lack of array length validation in delegateMulti() can lead to errors.

Lines of code Vulnerability details Impact There is no validation that the sources, targets, and amounts arrays passed to delegateMulti are the same length. This could cause issues with iterating through the arrays. Proof of Concept In the delegateMulti function. function delegateMulti uint256...

No check proxy contract is deployed

Lines of code Vulnerability details The deployProxyDelegatorIfNeeded function in ERC20MultiDelegate.sol does not verify that a proxy contract has been successfully deployed before emitting an event indicating its creation. Impact Both createProxyDelegatorAndTransfer and processDelegation function...

AZL-35436 CVE-2023-44487 affecting package docker-buildx for versions less than 0.14.0-1

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-31292 CVE-2023-44487 affecting package azcopy for versions less than 10.15.0-13

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-31348 CVE-2023-44487 affecting package vitess for versions less than 16.0.2-5

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-34827 CVE-2023-44487 affecting package kata-containers-cc for versions less than 0.6.1-2

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-31498 CVE-2023-44487 affecting package telegraf for versions less than 1.27.3-3

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-34609 CVE-2023-44487 affecting package cmake for versions less than 3.21.4-10

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-34591 CVE-2023-44487 affecting package cf-cli for versions less than 8.4.0-13

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-31307 CVE-2023-44487 affecting package flannel for versions less than 0.14.0-18

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-35097 CVE-2023-44487 affecting package packer for versions less than 1.8.1-14

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

AZL-34682 CVE-2023-44487 affecting package etcd for versions less than 3.5.6-11

The HTTP/2 protocol allows a denial of service server resource consumption because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023...

CVE-2023-40534

When a client-side HTTP/2 profile and the HTTP MRF Router option are enabled for a virtual server, and an iRule using the HTTPREQUEST event or Local Traffic Policy are associated with the virtual server, undisclosed requests can cause TMM to terminate. Note: Software versions which have reached...

Microsoft Response to Distributed Denial of Service (DDoS) Attacks against HTTP/2

Summary Beginning in September 2023, Microsoft was notified by industry partners about a newly identified Distributed Denial-of-Service DDoS attack technique being used in the wild targeting HTTP/2 protocol. This vulnerability CVE-2023-44487 impacts any internet exposed HTTP/2 endpoints. As an...