GHSA-89V2-G37M-G3FF Improper Verification of Cryptographic Signature in aws-encryption-sdk-cli

Impact This advisory addresses several LOW severity issues with streaming signed messages and restricting processing of certain types of invalid messages. This ESDK supports a streaming mode where callers may stream the plaintext of signed messages before the ECDSA signature is validated. In...

The vulnerability of signature verification functions (GOST DSA, EDDSA, and ECDSA) in the Nettle library, due to deficiencies in the cryptographic algorithms used, allows a perpetrator who has not undergone authentication verification to execute arbitrary code.

The vulnerability of signature verification functions GOST DSA, EDDSA, and ECDSA in the Nettle library is related to the shortcomings of the cryptographic algorithms used. Exploiting this vulnerability could allow an attacker to execute arbitrary code by submitting invalid signatures...

lasso -- signature checking failure

entrouvert reports: When AuthnResponse messages are not signed which is permitted by the specifiation, all assertion's signatures should be checked, but currently after the first signed assertion is checked all following assertions are accepted without checking their signature, and the last one i...

Researchers Demonstrate 2 New Hacks to Modify Certified PDF Documents

Cybersecurity researchers have disclosed two new attack techniques on certified PDF documents that could potentially enable an attacker to alter a document's visible content by displaying malicious content over the certified content without invalidating its signature. "The attack idea exploits the...

auth collision possible

Handle gpersoon Vulnerability details Impact The auth mechanism of AccessControl.sol uses function selectors msg.sig as a unique role definition. Also the moduleCall allows the code to be extended. Suppose an attacker wants to add the innocent looking function "leftbranchblockuint32" in an new...

Cisco SD-WAN Software Signature Verification Bypass (cisco-sa-sdwan-sigverbypass-gPYXd6Mk)

According to its self-reported version, Cisco SD-WAN Viptela Software is affected by a vulnerability due to improper verification of digital signatures for patch images. An authenticated, remote attacker with Administrator credentials can exploit this to install a malicious software patch on an...

8x8: [jitsi-meet] Authentication Bypass when using JWT w/ public keys

A Prosody module allows the use of symmetrical algorithms to validate JWTs. This means that tokens generated by arbitrary sources can be used to gain authorization to protected rooms. There are no known incidents related to this vulnerability. Please refer to the published advisory:...

CVE-2021-22734

Improper Verification of Cryptographic Signature vulnerability exists in homeLYnk Wiser For KNX and spaceLYnk V2.60 and prior which could cause remote code execution when an attacker loads unauthorized code...

PDF Feature ‘Certified’ Widely Vulnerable to Attack

Certified portable document format PDF files are used to securely sign agreements between two parties while keeping the contents’ integrity protected, but a new report found the security protections on most certified PDF applications were inadequate and left organizations exposed to a number of...

Information Disclosure

bouncycastle is vulnerable to information disclosure. The vulnerability exists due to a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures...

elliptic curve cryptography hardware accelerator 安全漏洞

A security vulnerability exists in the elliptic curve cryptography hardware accelerator that allows an attacker to recover private ECC keys used during ECDSA operations...

CVE-2020-15522

A flaw was found in bouncycastle. A timing issue within the EC math library can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack. A timing issue within the EC math library can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures. Remediation...

CVE-2020-15522

Bouncy Castle BC Java before 1.66, BC C .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multip...

DEBIAN-CVE-2020-15522

Bouncy Castle BC Java before 1.66, BC C .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multip...

Information disclosure

Bouncy Castle BC Java before 1.66, BC C .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multip...

UBUNTU-CVE-2020-15522

Bouncy Castle BC Java before 1.66, BC C .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multip...

CVE-2020-15522

Bouncy Castle BC Java before 1.66, BC C .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multip...

CVE-2020-15522

Bouncy Castle BC Java before 1.66, BC C .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multip...

RHEL 8 : opensc (RHSA-2021:1600)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:1600 advisory. The OpenSC set of libraries and utilities provides support for working with smart cards. OpenSC focuses on cards that support cryptographic...