SUSE-SU-2023:4843-1 Security update for python3-cryptography

This update for python3-cryptography fixes the following issues: - CVE-2023-49083: Fixed a NULL pointer dereference when loading certificates from a PKCS7 bundle bsc1217592...

SUSE-SU-2023:4842-1 Security update for python-cryptography

This update for python-cryptography fixes the following issues: - CVE-2023-49083: Fixed a NULL pointer dereference when loading certificates from a PKCS7 bundle bsc1217592...

Huawei EulerOS: Security Advisory for openssh (EulerOS-SA-2023-3407)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2023 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...

CVE-2023-4421

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

CVE-2023-4421

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

Design/Logic Flaw

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

CVE-2023-4421

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

CVE-2023-4421

CVE-2023-4421 concerns the NSS library’s handling of PKCS#1 v1.5 padding, where timing side-channel leakage exposed information about padding validity and message length. This could enable Bleichenbacher-like attacks, allowing an attacker to decrypt previously intercepted PKCS#1 v1.5 ciphertext (...

CVE-2023-4421

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

Timing side-channel in PKCS#1 v1.5 decryption depadding code — Mozilla

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

CVE-2023-45287

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

Design/Logic Flaw

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

CVE-2023-45287

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

CVE-2023-45287

Summary of CVE-2023-45287 (Go): Before Go 1.20, RSA-based TLS key exchanges used math/big (not constant time). RSA blinding was applied but may not fully prevent timing leaks after removal of PKCS#1 padding, potentially enabling recovery of session key bits. Go 1.20+ switched crypto/tls to a full...

CVE-2023-45287

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

GO-2023-2375 Before Go 1.20, the RSA based key exchange methods in crypto/tls may exhibit a timing side channel

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

UBUNTU-CVE-2023-49083

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling loadpempkcs7certificates or loadderpkcs7certificates could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service...

Internet Bug Bounty: OpenSSL vulnerable to the Marvin Attack (CVE-2022-4304)

A timing side channel vulnerability in OpenSSL RSA decryption was discovered that could allow plaintext recovery. By measuring decryption time, an attacker could recover RSA plaintext from captured ciphertexts after a large number of decryption attempts. All RSA padding modes were affected. The...

Node.js: Node.js is vulnerable to the Marvin Attack (timing variant of the Bleichenbacher attack against PKCS#1 v1.5 padding)

A timing side-channel vulnerability in the crypto library's privateDecrypt API allowed attackers to remotely exploit and decrypt or forge signatures when processing encrypted messages...

Side Channel Attack

libgnutls.so is vulnerable to a Side Channel Attack. The vulnerability exists due to inconsistent constant response times of ciphertexts with correct vs incorrect PKCS1 paddings, which allows an attacker to infer sensitive information...