CVE-2022-25638

In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sigalgo field differs between the certificateverify message and the certificate message...

CVE-2022-36937

HHVM 4.172.0 and all prior versions use TLS 1.0 for secure connections when handling tls:// URLs in the stream extension. TLS1.0 has numerous published vulnerabilities and is deprecated. HHVM 4.153.4, 4.168.2, 4.169.2, 4.170.2, 4.171.1, 4.172.1, 4.173.0 replaces TLS1.0 with TLS1.3. Applications...

CVE-2021-3336

DoTls13CertificateVerify in tls13.c in wolfSSL before 4.7.0 does not cease processing for certain anomalous peer behavior sending an ED22519, ED448, ECC, or RSA signature without the corresponding certificate. The client side is affected because man-in-the-middle attackers can impersonate TLS 1.3...

CVE-2020-12457

An issue was discovered in wolfSSL before 4.5.0. It mishandles the changecipherspec CCS message processing logic for TLS 1.3. If an attacker sends ChangeCipherSpec messages in a crafted way involving more than one in a row, the server becomes stuck in the ProcessReply loop, i.e., a denial of...

TLS Downgrade Attack

github.com/refraction-networking/utls is vulnerable to TLS Downgrade Attack. The vulnerability is due to missing downgrade protection caused due to failure to implement and verify the downgrade canary in TLS 1.3 handshakes when using a custom ClientHello spec, allowing an attacker to force a...

GO-2025-3638 ServerHellos are accepted without checking TLS 1.3 downgrade canaries in github.com/refraction-networking/utls

Before version 1.7.0, utls did not implement the TLS 1.3 downgrade protection mechanism specified in RFC 8446 Section 4.1.3 when using a utls ClientHello spec. This allowed an active network adversary to downgrade TLS 1.3 connections initiated by a utls client to a lower TLS version e.g., TLS 1.2...

uTLS ServerHellos are accepted without checking TLS 1.3 downgrade canaries

Description Before version 1.7.0, utls did not implement the TLS 1.3 downgrade protection mechanism specified in RFC 8446 Section 4.1.3 when using a utls ClientHello spec. This allowed an active network adversary to downgrade TLS 1.3 connections initiated by a utls client to a lower TLS version...

CBL Mariner 2.0 Security Update: mariadb (CVE-2023-3724)

The version of mariadb installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-3724 advisory. - If a TLS 1.3 client gets neither a PSK pre shared key extension nor a KSE key share extension when connectin...

CBL Mariner 2.0 Security Update: hvloader (CVE-2024-45159)

The version of hvloader installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-45159 advisory. - An issue was discovered in Mbed TLS 3.x before 3.6.1. With TLS 1.3, when a server enables optional...

HTTP/3 support in Reactor 2024.0 Release Train

HTTP/3, the latest major version of the Hypertext Transfer Protocol, had its specification finalized in June 2022. This version is designed to enhance performance, reliability, and security. Unlike its predecessors, HTTP/3 utilizes QUIC instead of TCP as its transport layer. QUIC is a UDP-based,...

PT-2025-29117

Name of the Vulnerable Software and Affected Versions: Apache HTTP Server versions 2.4.35 through 2.4.63 Description: In certain mod ssl configurations, an access control bypass is possible for trusted clients using TLS 1.3 session resumption. This occurs when mod ssl is configured for multiple...

openssl: Unbounded memory growth with session handling in TLSv1.3

A flaw was found in OpenSSL. A malicious client can trigger an uncontrolled memory consumption, resulting in a Denial of Service. This issue occurs due to OpenSSL's TLSv1.3 session cache going into an incorrect state, leading to it failing to flush properly as it fills. OpenSSL must be configured...

CVE-2024-20494

A vulnerability in the TLS cryptography functionality of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service DoS condition. This...

CVE-2024-20494

A vulnerability in the TLS cryptography functionality of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service DoS condition. This...

CVE-2024-20494

A vulnerability in the TLS cryptography functionality of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service DoS condition. This...

curl: When curl uses Schannel as TLS backend, it fails to enforce TLS 1.3 cipher suite selections correctly

Vulnerability description not provided...

CVE-2024-45397 H2O alllows bypassing address-based access control with 0-RTT

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by...

CVE-2024-45397 H2O alllows bypassing address-based access control with 0-RTT

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by...

CVE-2024-45397

Technical details (affected versions, fixes, and exploit info) are not provided in the supplied documents. Monitor for updates from vendors and security advisories.

CVE-2024-45397

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by...