Transport Layer Security (TLS): Issues & Protocol

Although Transport layer security TLS provides enhanced security, cybercriminals have become increasingly savvy, finding ways to circumvent many of these protections. Learn how malicious actors exploit vulnerabilities within TLS to introduce new forms of malware...

OpenSSL 代码问题漏洞

OpenSSL is an open source capable general-purpose cryptographic library from the OpenSSL team that implements the Secure Sockets Layer SSLv2/v3 and Secure Transport Layer TLSv1 protocols. It supports a variety of cryptographic algorithms, including symmetric ciphers, hashing algorithms, secure...

UBUNTU-CVE-2022-4203

A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate...

PT-2023-1658 · Linux +8 · Linux Kernel +8

Name of the Vulnerable Software and Affected Versions: Linux Kernel affected versions not specified Description: A flaw was found in the Linux Kernel, where the tls is tx ready function incorrectly checks for list emptiness. This can potentially lead to accessing a type-confused entry to the list...

curl: curl/libcurl vulnerable to TLS truncation attacks

Summary: curl/libcurl doesn't enforce "Closure Alerts" 12 for protocols that have no knowledge of the size of the transmitted data. This enables truncation attacks where the attacker in a meddler-in-the-middle position closes the connection prematurely. This results in partial file being download...

PT-2023-14416 · Matrixssl · Matrixssl

Name of the Vulnerable Software and Affected Versions: MatrixSSL versions 4.0.4 through 4.5.1 Description: The issue is related to an integer overflow in the matrixSslDecodeTls13 function. A remote attacker might be able to send a crafted TLS message to cause a buffer overflow, potentially leadin...

CVE-2022-45419

If the user added a security exception for an invalid TLS certificate, opened an ongoing TLS connection with a server that used that certificate, and then deleted the exception, Firefox would have kept the connection alive, making it seem like the certificate was still trusted. This vulnerability...

GHSA-GXQ5-79M2-GVVQ Apache Bookkeeper vulnerable to Improper Certificate Validation

The Apache Bookkeeper Java Client before 4.14.6 and also 4.15.0 does not close the connection to the bookkeeper server when TLS hostname verification fails. This leaves the bookkeeper client vulnerable to a man in the middle attack. The problem affects BookKeeper client prior to versions 4.14.6 a...

PYSEC-2022-43060

The Apache Bookkeeper Java Client before 4.14.6 and also 4.15.0 does not close the connection to the bookkeeper server when TLS hostname verification fails. This leavesthe bookkeeper client vulnerable to a man in the middle attack.The problem affects BookKeeper client prior to versions 4.14.6 and...

erlang/otp: Client Authentication Bypass

A Client Authentication Bypass was found in Erlang/OTP. This issue occurs in certain client-certification situations for SSL, TLS, and DTLS...

PT-2022-24907 · Nextcloud +2 · Nextcloudcmd +2

Name of the Vulnerable Software and Affected Versions: nextcloudcmd versions prior to 3.6.1 Description: The issue allows a Man-in-the-middle attack, potentially exposing sensitive data or credentials to a network attacker, due to the incorrect trust of invalid TLS certificates. This affects the...

CVE-2021-35246

The application fails to prevent users from connecting to it over unencrypted connections. An attacker able to modify a legitimate user's network traffic could bypass the application's use of SSL/TLS encryption and use the application as a platform for attacks against its users...

The vulnerability of the Cisco AsyncOS operating system in the Cisco Email Security Appliance (ESA) security system allows a perpetrator to trigger a service failure.

The vulnerability of the Cisco AsyncOS operating system in the Cisco Email Security Appliance ESA security system is related to errors in the certificate validation process. Exploiting this vulnerability could allow a malicious actor to cause service interruptions by establishing a large number o...

CVE-2022-20940

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...

CVE-2022-20927

A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an authenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper memory...

The vulnerability of the TLS implementation in the microsoftware-based Industrial Ethernet Switch Hirschmann Eagle 20 (EagleSDV) allows a attacker to induce a service failure.

The vulnerability of the TLS implementation in the microprogrammable industrial Ethernet interface device Hirschmann Eagle 20 EagleSDV is related to the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability could allow a malicious actor to cause service...

The vulnerability of the Windows Secure Channel component of the Windows operating system, which allows a hacker to trigger a service failure

The vulnerability of the Windows Secure Channel component in the Microsoft Windows operating system is related to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor, operating remotely, to cause service interruptions by sending specially crafted data ...

PT-2022-36765 · Git +1 · Suricata

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided description. Description: The issue is related to a crash caused by a use-of-uninitialized-value error. The crash occurs in the TLSDecodeHandshakeHello function, which is part of...

Cisco Firepower Threat Defense 安全漏洞

Cisco Firepower Threat Defense FTD is a suite of unified software from Cisco that provides next-generation firewall services.Cisco Firepower Threat Defense FTD Software is vulnerable to an information disclosure vulnerability that stems from its TLS handler's implementation of improper...

PT-2022-5685 · Cisco · Cisco Ftd

Name of the Vulnerable Software and Affected Versions: Cisco Firepower Threat Defense FTD Software affected versions not specified Description: A vulnerability in the TLS handler could allow an unauthenticated, remote attacker to gain access to sensitive information. This issue is due to improper...