CVE-2022-35961 ECDSA signature malleability in OpenZeppelin Contracts

OpenZeppelin Contracts is a library for secure smart contract development. The functions ECDSA.recover and ECDSA.tryRecover are vulnerable to a kind of signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature format. This is only an issu...

PT-2022-23060

Name of the Vulnerable Software and Affected Versions OpenZeppelin Contracts versions prior to 4.7.3 Description The functions ECDSA.recover and ECDSA.tryRecover are vulnerable to signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature...

Direct usage of ecrecover allows signature malleability

Lines of code Vulnerability details Impact The permit function of ERC20Permit calls the Solidity ecrecover function directly to verify the given signatures. However, the ecrecover EVM opcode allows malleable non-unique signatures and thus is susceptible to replay attacks. This can leads to permit...

Incorrect check for signature malleability

Lines of code Vulnerability details Impact Sig.recover has an Incorrect check: c.v != 27 || c.v != 28. Thus, Sig.recover always reverts. Proof of Concept c.v != 27 || c.v != 28 is always true function recoverbytes32 h, Components calldata c internal pure returns address // EIP-2 and malleable...

use ECDSA helper library instead of ecrecover

Lines of code Vulnerability details use ECDSA helper library instead of ecrecover the function permit adds approval for a spender for a certain amount of value use of ecrecover to validate signatures without a nonce will allow signatures to be replayed to add additional approvals due to signature...

Mageia: Security Advisory (MGASA-2020-0002)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

lockWithPermit() function allows for replay attacks and signature malleability

Handle jayjonah8 Vulnerability details Impact In XDEFIDistribution.sol the lockWithPermit function calls permit on the XDEFI token. The problem with simply using permit alone for this is the message that is signed by the owner using the ECDSA algorithm. The message only contains the receiver...

CVE-2021-36751

ENC DataVault 7.2.3 and before, and OEM versions, use an encryption algorithm that is vulnerable to data manipulation without knowledge of the key. This is called ciphertext malleability. There is no data integrity mechanism to detect this manipulation...

CVE-2021-36751

ENC DataVault 7.2.3 and before, and OEM versions, use an encryption algorithm that is vulnerable to data manipulation without knowledge of the key. This is called ciphertext malleability. There is no data integrity mechanism to detect this manipulation...

CVE-2021-36751

ENC DataVault 7.2.3 and before, and OEM versions, use an encryption algorithm that is vulnerable to data manipulation without knowledge of the key. This is called ciphertext malleability. There is no data integrity mechanism to detect this manipulation...

Design/Logic Flaw

ENC DataVault 7.2.3 and before, and OEM versions, use an encryption algorithm that is vulnerable to data manipulation without knowledge of the key. This is called ciphertext malleability. There is no data integrity mechanism to detect this manipulation...

CVE-2021-36751

ENC DataVault 7.2.3 and earlier, including OEM versions, use a cryptographic algorithm vulnerable to ciphertext malleability, and lack a data-integrity check. An attacker could modify ciphertext, causing corresponding plaintext changes. The vulnerability is tied to ENC DataVault’s encryption choi...

CVE-2021-36751

ENC DataVault 7.2.3 and before, and OEM versions, use an encryption algorithm that is vulnerable to data manipulation without knowledge of the key. This is called ciphertext malleability. There is no data integrity mechanism to detect this manipulation...

PT-2022-10543 · Unknown · Enc Datavault Oem +1

Name of the Vulnerable Software and Affected Versions: ENC DataVault versions 7.2.3 and before ENC DataVault OEM versions Description: The issue concerns the use of an encryption algorithm that is vulnerable to data manipulation, known as ciphertext malleability, without requiring knowledge of th...

python-ecdsa: DER encoding is not being verified in signatures

A flaw was found in python-ecdsa, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false...

lack of validation for the v and s value in recover() funciton

Handle JMukesh Vulnerability details Impact due to lack of checking of v and s value in recover it become prone to signature malleability Proof of Concept check out the tryRecover of ECDSA.sol Tools Used manual reveiw Recommended Mitigation Steps add necessary check to make the signature unique -...

BLS Signature "Malleability"

Impact 1. BLS signature validation in lotus uses blst library method VerifyCompressed. This method accepts signatures in 2 forms - "serialized", and "compressed", meaning that BLS signatures can be provided as either of 2 unique byte arrays. 2. Lotus block validation functions perform a uniquenes...

GHSA-G5VF-V6WF-7W2R Ciphertext Malleability Issue in Tink Java

Impact Tink's Java version before 1.5 under some circumstances allowed attackers to change the key ID part of the ciphertext, resulting in the attacker creating a second ciphertext that will decrypt to the same plaintext. This can be a problem in particular in the case of encrypting with a...

Ciphertext Malleability Issue in Tink Java

Impact Tink's Java version before 1.5 under some circumstances allowed attackers to change the key ID part of the ciphertext, resulting in the attacker creating a second ciphertext that will decrypt to the same plaintext. This can be a problem in particular in the case of encrypting with a...

PT-2025-11144

Name of the Vulnerable Software and Affected Versions: EdDSA-Java aka ed25519-java versions 0.3.0 and earlier Description: The implementation of EdDSA in EdDSA-Java exhibits signature malleability and does not satisfy the SUF-CMA property. This allows attackers to create new valid signatures...