Security Bulletin: Potential side-channel cryptographic vulnerabilities in IBM DataPower Gateway

Summary IBM DataPower Gateway is potentially vulnerable to two side-channel attacks CVE-2018-0495, CVE-2018-12404 Vulnerability Details CVEID: CVE-2018-0495 DESCRIPTION: Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be...

nettle: Out of bounds memory access in signature verification

A flaw was found in Nettle, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an...

PT-2021-20342

Name of the Vulnerable Software and Affected Versions: Luca versions 1.1.14 and earlier Description: The issue allows remote attackers to cause a denial of service by inserting many fake records related to COVID-19. This is because Phone Number data lacks a digital signature. Recommendations: For...

DEBIAN-CVE-2017-8761

In OpenStack Swift through 2.10.1, 2.11.0 through 2.13.0, and 2.14.0, the proxy-server logs full tempurl paths, potentially leaking reusable tempurl signatures to anyone with read access to these logs. All Swift deployments using the tempurl middleware are affected...

UBUNTU-CVE-2017-8761

In OpenStack Swift through 2.10.1, 2.11.0 through 2.13.0, and 2.14.0, the proxy-server logs full tempurl paths, potentially leaking reusable tempurl signatures to anyone with read access to these logs. All Swift deployments using the tempurl middleware are affected...

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...

Nettle Library Code Execution

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...