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...

Delegation transfer might become temporarily unavailable due to input format in _delegateMulti

Lines of code Vulnerability details Impact A user might mint a valid delegation token to a target delegate which cannot be transferred to another target delegate through processDelegation due to delegateMulti's extension of address type of data into the space of uint256. Proof of Concept As...

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 ...

Loss of tokens because target address can be set to zero

Lines of code Vulnerability details Impact Due to the possibility of target addresses being zero, tokens transferred to zero address will be lost forever, leading to loss of funds for the users of the protocol and that tokens being out of circulation forever burned. Proof of Concept Users can...

Possibility of losing users funds due to not checking for zero address (address 0x0)

Lines of code Vulnerability details Impact As there is no function for checking whether the addresses of the sources and targets are zero or not in the delegateMulti function it may cause issues for users Sending tokens to a zero address address 0x0 is generally not a recommended practice in...

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...

Same multiple values in source result in wrong withdrawl

Lines of code Vulnerability details Impact Detailed description of the impact of this finding. If by mistake same delegate value is given multiple times to sources array then withdrawal is affected Proof of Concept Provide direct links to all referenced code in GitHub. Add screenshots, logs, or a...

Delegate balance in getBalanceForDelegate can be manipulated by delegate sending ERC1155 tokens to the contract directly

Lines of code Vulnerability details Impact The contract is an ERC1155 contract that can receive tokens from delegates which might affect core protocol invariants through getBalanceForDelegate Proof of Concept function getBalanceForDelegate address delegate internal view returns uint256 return...

Possible hash collision in retrieveProxyContractAddress()

Lines of code Vulnerability details Impact implemention of keccak256abi.encodePackeda, b with both dynamic types or same type with dynamic nature leads to collision in hash. Proof of Concept From the sol docs:link. i.e If you use keccak256abi.encodePackeda, b and both a and b are dynamic types, i...

io.netty:netty-codec-http2 vulnerable to HTTP/2 Rapid Reset Attack

A client might overload the server by issue frequent RST frames. This can cause a massive amount of load on the remote system and so cause a DDOS attack. Impact This is a DDOS attack, any http2 server is affected and so you should update as soon as possible. Patches This is patched in version...

CVE-2023-44487 HTTP/2 Rapid Reset Attack

Today, Amazon Web Services, Cloudflare, and Google, in a coordinated announcement, reveal their experiences mitigating powerful HTTP/2-based DDoS attacks utilizing a zero-day technique referred to as Rapid Reset, documented under the vulnerability identifier CVE-2023-44487. The attack magnitudes...

Harbor timing attack risk

In the Harbor jobservice container, the comparison of secrets in the authenticator type is prone to timing attacks. The vulnerability occurs due to the following code: https://github.com/goharbor/harbor/blob/aaea068cceb4063ab89313d9785f2b40f35b0d63/src/jobservice/api/authenticator.goL69-L69 To...

CVE-2023-44487

A flaw was found in handling multiplexed streams in the HTTP/2 protocol. A client can repeatedly make a request for a new multiplex stream and immediately send an RSTSTREAM frame to cancel it. This creates extra work for the server setting up and tearing down the streams while not hitting any...

github.com/nghttp2/nghttp2 has HTTP/2 Rapid Reset

Impact Rapidly creating and cancelling streams HEADERS frame immediately followed by RSTSTREAM without bound cause denial of service. See https://vulners.com/cve/CVE-2023-44487 for details. Patches nghttp2 v1.57.0 mitigates this vulnerability by default. Workarounds If upgrading to nghttp2 v1.57....

kernel: Spectre v2 SMT mitigations problem

It was found that the Linux Kernel still left the victim process exposed to attacks in some cases even after enabling the spectre-BTI mitigation with prctl. The kernel failed to protect applications that attempted to protect against Spectre v2 leaving them open to attack from other processes...

Citrix Hypervisor Multiple Security Updates

Description of Problem Several issues have been discovered that affect Citrix Hypervisor 8.2 CU1 LTSR and may allow malicious privileged code in a guest VM to: i Compromise an AMD-based host via a passed through PCI device: CVE-2023-34326 ii Compromise the host when a specific administrative acti...

Lenovo Preload Directory Vulnerability - Lenovo Support US

No description provided...

Protecting Against HTTP/2 Rapid Reset: CVE-2023-44487

Today, Google disclosed a zero-day vulnerability in the HTTP/2 protocol. Imperva collaborated proactively with Google to gain advanced insights into this vulnerability. After a comprehensive inspection of this vulnerability by Imperva’s Product Development and Threat Research teams, we can confir...

HTTP/2 Rapid Reset Vulnerability, CVE-2023-44487

Researchers and vendors have disclosed a denial-of-service DoS vulnerability in HTTP/2 protocollink is external. The vulnerability CVE-2023-44487link is external, known as Rapid Reset, has been exploited in the wild in August 2023 through October 2023. CISA recommends organizations that provide...

K000134652: BIG-IP TCP profile vulnerability CVE-2023-40542

Security Advisory Description When TCP Verified Accept is enabled on a TCP profile that is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization. CVE-2023-40542 Impact System performance can degrade until the Traffic Management Microkernel TMM...