The vulnerabilities of encryption algorithms such as PKCS#1 v1.5, RSA-OEAP, and RSASVE in the OpenSSL cryptographic library allow attackers to execute the Bleichenbacher attack.

The vulnerability of encryption algorithms such as PKCS1 v1.5, RSA-OEAP, and RASSEV in the OpenSSL cryptographic library is related to the creation of a secondary synchronization channel due to time differences. Exploiting this vulnerability can allow an attacker operating remotely to execute a...

EulerOS 2.0 SP8 : openssl (EulerOS-SA-2023-1602)

According to the versions of the openssl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a netwo...

QNAP QTS / QuTS hero Multiple Vulnerabilities in OpenSSL (QSA-23-15)

The version of QNAP QTS / QuTS hero installed on the remote host is affected by multiple vulnerabilities as referenced in the QSA-23-15 advisory. - A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in ...

Oracle Linux 8 : gnutls (ELSA-2023-1569)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-1569 advisory. 3.6.16-6 - Fix x8664 CPU feature detection when AVX is not available 2131152 - Fix timing side-channel in TLS RSA key exchange 2162598 Tenable has extracted the...

Cisco Firepower Threat Defense Software SSL Decryption Policy Bleichenbacher Attack (cisco-sa-ftd-tls-bb-rCgtmY2)

A vulnerability in the TLS handler of Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to gain access to sensitive information. This vulnerability is due to improper implementation of countermeasures against a Bleichenbacher attack on a device that uses...

RHEL 9 : gnutls (RHSA-2023:1200)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1200 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such as SSL, TLS...

Tenable SecurityCenter <= 5.23.1 Multiple Vulnerabilities (TNS-2023-08)

According to its self-reported version, the Tenable SecurityCenter application installed on the remote host is running a version between 5.21.0 and 5.23.1 and is therefore affected by multiple vulnerabilities in OpenSSL prior to version 1.1.1t: - A timing based side channel exists in the OpenSSL...

SUSE SLES12 Security Update : compat-openssl098 (SUSE-SU-2023:0581-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:0581-1 advisory. - CVE-2022-4304: Fixed timing Oracle in RSA Decryption bsc1207534. Tenable has extracted the preceding description block directly from the...

openssl: timing attack in RSA Decryption implementation

A timing-based side channel exists in the OpenSSL RSA Decryption implementation, which could be sufficient to recover a ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption, an attacker would have to be able to send a very large number of trial messages...

Ubuntu 20.04 LTS / 22.04 LTS : GnuTLS vulnerability (USN-5901-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5901-1 advisory. Hubert Kario discovered that GnuTLS had a timing side-channel when handling certain RSA messages. A remote attacker could possibly use this issue to...

Fedora 36 : openssl (2023-a5564c0a3f)

The remote Fedora 36 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-a5564c0a3f advisory. Rebase to upstream version 3.0.8 Resolves: CVE-2022-4203 Resolves: CVE-2022-4304 Resolves: CVE-2022-4450 Resolves: CVE-2023-0215 Resolves:...

K10281096: TLS in Mozilla NSS vulnerability CVE-2018-12404

Security Advisory Description A cached side channel attack during handshakes using RSA encryption could allow for the decryption of encrypted content. This is a variant of the Adaptive Chosen Ciphertext attack AKA Bleichenbacher attack and affects all NSS versions prior to NSS 3.41. CVE-2018-1240...

K97324400: OpenSSL vulnerability CVE-2019-1563

Security Advisory Description In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypt...

K54039800: MatrixSSL vulnerability CVE-2016-6883

Security Advisory Description MatrixSSL before 3.8.3 configured with RSA Cipher Suites allows remote attackers to obtain sensitive information via a Bleichenbacher variant attack. CVE-2016-6883 Impact There is no impact; F5 products are not affected by this vulnerability. Security Advisory Status...

OESA-2023-1107 openssl security update

Security Fixes: The public API function BIOnewNDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL to support the SMIME, CMS and PKCS7 streaming capabilities, but may also be called directly by end user applications. The function receives a...

A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message the attacker would be able to decrypt the application data exchanged over that connection.

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ALPINE-CVE-2023-0361

A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to...

AZL-13568 CVE-2023-0361 affecting package gnutls for versions less than 3.7.7-2

A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to...

DEBIAN-CVE-2023-0361

A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to...

CVE-2023-0361

A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to...