PT-2023-5588 · Unknown +8 · Crypto/Tls +8

Name of the Vulnerable Software and Affected Versions: crypto/tls affected versions not specified Description: The issue is related to extremely large RSA keys in certificate chains, which can cause a client/server to expend significant CPU time verifying signatures. With the fix, the size of RSA...

CVE-2023-29409

Extremely large RSA keys in certificate chains can cause a client/server to expend significant CPU time verifying signatures. With fix, the size of RSA keys transmitted during handshakes is restricted to = 8192 bits. Based on a survey of publicly trusted RSA keys, there are currently only three...

keycloak: oauth client impersonation

A flaw was found in Keycloak. A Keycloak server configured to support mTLS authentication for OAuth/OpenID clients does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client, therefore, access data that belongs to...

openssl: Denial of service by excessive resource usage in verifying X509 policy constraints

A security vulnerability has been identified in all supported OpenSSL versions related to verifying X.509 certificate chains that include policy constraints. This flaw allows attackers to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of...

Amazon Linux AMI : openssl (ALAS-2023-1762)

The version of openssl installed on the remote host is prior to 1.0.2k-16.163. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1762 advisory. A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.50...

EulerOS 2.0 SP8 : openssl (EulerOS-SA-2023-2195)

According to the versions of the openssl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that...

Huawei EulerOS: Security Advisory for compat-openssl10 (EulerOS-SA-2023-2187)

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...

Security Bulletin: CVE-2023-0464 may affect IBM CICS TX Advanced 10.1

Summary CVE-2023-0464 may affect IBM CICS TX Advanced 10.1. IBM CICS TX Advanced 10.1 has addressed the applicable CVE. Vulnerability Details CVEID:CVE-2023-0464 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an error related to the verification of X.509 certificate chains...

Amazon Linux 2 : openssl (ALAS-2023-2073)

The version of openssl installed on the remote host is prior to 1.0.2k-24. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2073 advisory. A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509...

Medium: openssl

Issue Overview: A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers...

Debian DSA-5417-1 : openssl - security update

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5417 advisory. - A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy...

USN-6077-1: OpenJDK vulnerabilities

Ben Smyth discovered that OpenJDK incorrectly handled half-duplex connections during TLS handshake. A remote attacker could possibly use this issue to insert, edit or obtain sensitive information. CVE-2023-21930 It was discovered that OpenJDK incorrectly handled certain inputs. An attacker could...

EulerOS 2.0 SP10 : shim (EulerOS-SA-2023-1812)

According to the versions of the shim packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that...

Security Bulletin: OpenSSL security vulnerability CVE-2021-3449 and CVE-2021-3450 in IBM Safer Payments versions of 6.1 and 6.2 below 6.1.0.08 and 6.2.1.03

Summary CVE-2021-3449: OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in signaturealgorithms processing. By sending a specially crafted renegotiation ClientHello message from a client, a remote attacker could exploit this vulnerability to cause the TLS server t...

SUSE SLES12: libopenssl-devel / libopenssl1_0_0 / libopenssl1_0_0-32bit / etc (SUSE-SU-2023:1738-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2023:1738-1 advisory. - CVE-2023-0464: Fixed excessive Resource Usage Verifying X.509 Policy Constraints bsc1209624. Tenable has extracted the preceding description block...

SUSE SLES12 Security Update : compat-openssl098 (SUSE-SU-2023:1737-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:1737-1 advisory. - A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains...

FreeBSD : OpenSSL -- Excessive Resource Usage Verifying X.509 Policy Constraints (1ba034fb-ca38-11ed-b242-d4c9ef517024)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 1ba034fb-ca38-11ed-b242-d4c9ef517024 advisory. - A security vulnerability has been identified in all supported versions of OpenSSL related to the...

SUSE CVE-2023-0464

A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of...

ALPINE-CVE-2023-0464

A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of...

AZL-31141 CVE-2023-0464 affecting package edk2 for versions less than 20230301gitf80f052277c8-34

A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of...