CVE-2020-8265

Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 are vulnerable to a use-after-free bug in its TLS implementation. When writing to a TLS enabled socket, node::StreamBase::Write calls node::TLSWrap::DoWrite with a freshly allocated WriteWrap object as first argument. If the DoWrite method...

NSA Releases Guidance on Eliminating Obsolete TLS Protocol Configurations

The National Security Agency NSA has released a Cybersecurity Information CSI sheet on eliminating obsolete Transport Layer Security TLS configurations. The information sheet identifies strategies to detect obsolete cipher suites and key exchange mechanisms, discusses recommended TLS...

Inside Secure MatrixSSL 缓冲区错误漏洞

MatrixSSL is an embedded, open source SSLv3 stack designed for small applications and devices. An invalid pointer release vulnerability exists in the DTLS server in versions prior to MatrixSSL 4.2.2 Open. An attacker could exploit this vulnerability via specially crafted incoming network messages...

Attackers Abusing Citrix NetScaler Devices to Launch Amplified DDoS Attacks

Citrix has issued an emergency advisory warning its customers of a security issue affecting its NetScaler application delivery controller ADC devices that attackers are abusing to launch amplified distributed denial-of-service DDoS attacks against several targets. "An attacker or bots can overwhe...

F5 BIG-IP Security Vulnerabilities

F5 BIG-IP is an application delivery platform that integrates network traffic management, application security management, load balancing, and other features from F5 USA. A security vulnerability exists in F5 BIG-IP, which can be exploited by an attacker to trigger a denial of service by requesti...

OpenJDK: HostnameChecker does not ensure X.509 certificate names are in normalized form (JSSE, 8237592)

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE component: JSSE. Supported versions that are affected are Java SE: 7u261, 8u251, 11.0.7 and 14.0.1; Java SE Embedded: 8u251. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to...

Important: Red Hat Security Advisory: openssl security update

An update for openssl is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

org.eclipse.paho.client.mqttv3: Improper hostname validation in the MQTT library

In the Eclipse Paho Java client library version 1.2.0, when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. This could allow one MQTT server to impersonate another and provide the client library with incorrect information...

HCL BigFix Inventory 安全漏洞

HCL BigFix Platform is a suite of endpoint security management platform from HCL India. The platform supports automated discovery, management and remediation of endpoint security issues. A security vulnerability exists in HCL BigFix Inventory v10.0.2 onwards, which stems from not disabling the...

The vulnerability of the SSL/TLS module of Cisco Adaptive Security Appliance’s network firewall allows a attacker to cause a service failure.

The vulnerability of the SSL/TLS module of the Cisco Adaptive Security Appliance software lies in errors during initialization of pointers. Exploiting this vulnerability could allow a malicious actor to cause service interruptions...

UBUNTU-CVE-2020-28896

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $sslforcetls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials...

What is the TLS padlock saying?

Security What is the TLS padlock saying? Share November 20th, 2020 Alice and Bob use TLS to keep their long distance relationship hot and private. TL;DR: skip to the conclusions to see what Alice learned. The Privacy Problem Alice and Bob had to turn their relationship into a long distance one...

The vulnerability of the TLS session handler in Cisco Firepower Threat Defense (FTD) and Cisco Adaptive Security Appliance (ASA) allows attackers to gain unauthorized access to protected information.

The vulnerability of TLS session handler microprogramming software for Cisco Firepower Threat Defense and Cisco Adaptive Security Appliance is related to information disclosure due to incompatibility issues. Exploiting this vulnerability can allow a malicious actor to gain unauthorized access to...

Security Bulletin: TLS Protocol DHE_EXPORT Ciphers Downgrade MitM (Logjam) vulnerability in IBM Cloud Pak for Data Streams

Summary The Transport Layer Security TLS protocol contains a flaw that is triggered when handling DiffieHellman key exchanges defined with the DHEEXPORT cipher. A man-in-the middle attacker may be able to downgrade the session to use EXPORTDHE cipher suites. Thus, it is recommended to remove...

The vulnerability of Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense, a microprogramming-based network device for SSL/TLS session processors, allows attackers to induce service failures.

The vulnerability of Cisco Adaptive Security Appliance and Cisco Firepower Threat Defense’s SSL/TLS session processors involves uncontrolled resource consumption. Exploiting this vulnerability can allow a malicious actor to cause service interruptions by initiating multiple SSL/TLS sessions and...

The vulnerability of the ssl_inspection component in Cisco Firepower Threat Defense’s microprogramming software allows a attacker to trigger a service failure.

The vulnerability of the sslinspection component of Cisco Firepower Threat Defense’s microprogramming network interface layer exists due to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to cause service interruptions by sending corrupted TLS...

UBUNTU-CVE-2020-28327

A respjsipsession crash was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1. and Certified Asterisk before 16.8-cert5. Upon receiving a new SIP Invite, Asterisk did not return the created dialog locked or referenced. This...

UBUNTU-CVE-2020-17490

The TLS module within SaltStack Salt through 3002 creates certificates with weak file permissions...

squid: DoS in TLS handshake

A flaw was found in squid. A denial-of-service attack while processing TLS certificates is possible due to use of a potentially dangerous function in Squid and the default certificate validation helper. The highest threat from this vulnerability is to system availability...

CVE-2020-3585

A vulnerability in the TLS handler of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software for Cisco Firepower 1000 Series firewalls could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability is due to...