FreeSWITCH Denial Of Service Exploit

FreeSWITCH versions prior to 1.10.11 remote denial of service exploit that leverages a race condition in the hello handshake phase of the DTLS protocol. include include include include define IP "127.0.0.1" define PORT 5061 int main SSLlibraryinit; SSLloaderrorstrings; OpenSSLaddsslalgorithms;...

The vulnerability of the implementations of DTLS (Datagram Transport Layer Security) and SRTP protocols in Asterisk IP-telephony management systems and Certified Asterisk allows a attacker to induce a service failure.

The vulnerability of DTLS and SRTP protocols for Asterisk IP-telephony systems and Certified Asterisk arises from the behavior of the message processing mechanism during ClientHello messages. Exploiting this vulnerability allows a malicious actor to cause service failures...

SUSE-SU-2023:2974-1 Security update for netty, netty-tcnative

This update for netty, netty-tcnative fixes the following issues: Upgrade to upstream version 4.1.94: - CVE-2023-34462: Allow to limit the maximum lenght of the ClientHello bsc1212637...

Denial Of Service (DoS)

io.netty:netty-handler is vulnerable to Denial of Service DoS attacks. During TLS handshakes, the SniHandler class can allocate up to 16MB of heap for each channel. The SniHandler is used to establish a TCP server when the handler or channel has no idle timeout. In order to configure an SSL handl...

EulerOS 2.0 SP5 : openssl111d (EulerOS-SA-2023-2183)

According to the versions of the openssl111d packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation...

CVE-2023-23759

There is a vulnerability in the fizz library prior to v2023.01.30.00 where a CHECK failure can be triggered remotely. This behavior requires the client supported cipher advertisement changing between the original ClientHello and the second ClientHello, crashing the process impact is limited to...

CVE-2023-23759

There is a vulnerability in the fizz library prior to v2023.01.30.00 where a CHECK failure can be triggered remotely. This behavior requires the client supported cipher advertisement changing between the original ClientHello and the second ClientHello, crashing the process impact is limited to...

K41738501: Mozilla NSS vulnerability CVE-2018-12384

Security Advisory Description When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all versions prior to NSS 3.39. This does not...

K83623027: OpenSSL vulnerability CVE-2021-3449

Security Advisory Description An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signaturealgorithms extension where it was present in the initial ClientHello, but includes a...

SUSE CVE-2013-0440

Unspecified vulnerability in the Java Runtime Environment JRE component in Oracle Java SE 7 through Update 11, 6 through Update 38, 5.0 through Update 38, and 1.4.240 and earlier, and OpenJDK 7, allows remote attackers to affect availability via vectors related to JSSE. NOTE: the previous...

SUSE CVE-2014-0195

The dtls1reassemblefragment function in d1both.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h does not properly validate fragment lengths in DTLS ClientHello messages, which allows remote attackers to execute arbitrary code or cause a denial of service buffer overflow a...

SUSE CVE-2014-3511

The ssl23getclienthello function in s23srvr.c in OpenSSL 1.0.1 before 1.0.1i allows man-in-the-middle attackers to force the use of TLS 1.0 by triggering ClientHello message fragmentation in communication between a client and server that both support later TLS versions, related to a "protocol...

SUSE CVE-2018-12384

When handling a SSLv2-compatible ClientHello request, the server doesn't generate a new random value but sends an all-zero value instead. This results in full malleability of the ClientHello for SSLv2 used for TLS 1.2 in all versions prior to NSS 3.39. This does not impact TLS 1.3...

OPENSUSE-SU-2022:10247-1 Security update for mbedtls

This update for mbedtls fixes the following issues: - CVE-2022-35409: Fixed buffer overread in DTLS ClientHello parsing boo1201581...

ALPINE-CVE-2022-35409

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information...

UBUNTU-CVE-2022-35409

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information...

Heap overflow

An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information...

Security Bulletin: Vulnerabilities in OpenSSL including ClientHello DoS affect Multiple N series Products

Summary OpenSSL vulnerabilities were disclosed on March 19, 2015 by the OpenSSL Project. This includes OpenSSL ClientHello sigalgs DoS CVE-2015-0291. OpenSSL is used by Multiple N series Products. Multiple N series Products have addressed the applicable CVEs. Vulnerability Details CVEID:...

OpenSSL: OCSP Stapling Vulnerability (20110208) - Linux

OpenSSL is prone to an OCSP stapling vulnerability. Copyright C 2021 Greenbone Networks GmbH 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-or-later This program is free software; you can...

EulerOS Virtualization 2.9.1 : openssl (EulerOS-SA-2021-1960)

According to the version of the openssl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability : - An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2...