ciphertest

cipherTest.sh by Patrick Bogen cipherTest.sh is a "better" SSL cipher checker in that it uses gnutls, which has support for many more configurations than openssl. It tests potentially 3,200 different configurations but does some pre-optimization so that it minimizes "failed" checks. It relies on...

PoC_TLS1_3_CVE-2020-13777

PoC TLS1.3 CVE-2020-13777 The purpose of this PoC This PoC and related article were created to apply for the project "Challenge CVE-2020-13777". CVE-2020-13777 is a GnuTLS vulnerability whose patch is widely distributed. This PoC aims to contribute to improving the information security literacy o...

CVE-2026-45185

CVE-2026-45185 — Dead.Letter: Exim Heap UAF to Remote Root CVSS 9.8 Critical | Exim 4.97–4.99.2 | Ubuntu / GnuTLS builds | Unauthenticated Full write-up with GDB trace, step-by-step analysis, and global exposure data: https://0init.github.io/cve-2026-45185-dead-letter-exim-rce.html What is it...

cryptodev-linux

cryptodev-linux This is a /dev/crypto device driver, equivalent to those in OpenBSD or FreeBSD. The main idea is to access existing ciphers in kernel space from userspace, thus enabling the re-use of a hardware implementation of a cipher. For questions and suggestions, please use the homepage at...

CVE-2014-3466_PoC

Proof of Concept for CVE-2014-3466 GnuTLS buffer overflow: session id length check Information See: https://bugzilla.redhat.com/showbug.cgi?id=1101932 This is not a weaponized exploit. be warned: this python code is ugly, I pretty much handcrafted the ServerHello and spent only about five fifteen...

cve-2020-13777

Zeek test script for CVE-2020-13777 This script performs a simple test to check if a server is potentially vulnerable to CVE-2020-13777. CVE-2020-13777 causes GnuTLS to create unencrypted session tickets. This seems to be detectable by checking gnutls sets the keyname to zero - for which it uses...

Dead.Letter-CVE-2026-45185

CVE-2026-45185 — "Dead.Letter" Exim Vulnerability Scanner A shell script for detecting whether a Linux system is vulnerable to CVE-2026-45185, a use-after-free in the Exim mail transfer agent that can lead to remote code execution. Designed for use in CI/CD pipelines, configuration management...

POC_CVE-2026-45185

CVE-2026-45185 Nuclei Template Validation Lab This repository is not a general-purpose exploit PoC repository. It is a local validation lab for reproducing and reviewing the behavior of a CVE-2026-45185 template intended for contribution to projectdiscovery/nuclei-templates. The nuclei code...

CVE-2026-107928

When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when gnutlsrecordsend returns a number of bytes sent greater than the number of bytes it was given to send. GnuTLS does that after a blocked...

CVE-2026-107928

The curl software, when compiled with GnuTLS support, is vulnerable to an out-of-bounds read during WebSocket uploads. A malicious WebSocket server can trigger this by causing a blocked transmission, leading to gnutls_record_send() returning a byte count greater than the provided buffer size. Thi...

CVE-2026-107928

When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when "gnutlsrecordsend" returns a number of bytes sent greater than the number of bytes it was given to send. GnuTLS does that after a blocke...

EUVD-2026-105357

When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when gnutlsrecordsend returns a number of bytes sent greater than the number of bytes it was given to send. GnuTLS does that after a blocked...

CVE-2026-107928

When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when gnutlsrecordsend returns a number of bytes sent greater than the number of bytes it was given to send. GnuTLS does that after a blocked...

CVE-2026-107928

When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when gnutlsrecordsend returns a number of bytes sent greater than the number of bytes it was given to send. GnuTLS does that after a blocked...

CVE-2026-95184

A flaw was found in gnutls. Due to improper certificate validation, the library may incorrectly reject legitimate certificates presented by valid users. This issue can lead to a Denial of Service DoS, preventing authorized clients from establishing secure connections or accessing services...

CVE-2026-95210

A flaw was found in GnuTLS. Improper certificate validation causes the library to accept certificates containing invalid extensions. A remote attacker could exploit this flaw by presenting a specially crafted certificate during a secure connection. Successful exploitation may allow an attacker to...

CVE-2026-95209

A flaw was found in gnutls. An issue during certificate validation causes legitimate Certificate Authority CA certificates to be improperly rejected. Consequently, affected applications fail to establish secure connections with trusted endpoints, resulting in a Denial of Service DoS...

Ubuntu: USN-8927-1 (CVE-2026-107928): curl vulnerabilities

When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when gnutlsrecordsend returns a number of bytes sent greater than the number of bytes it was given to send. GnuTLS does that after a blocked...

K000163776: GnuTLS vulnerability CVE-2026-42011

Security Advisory Description A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint...

curl: curl reuses an HTTPS connection when a response is already buffered in the TLS stack

curl master 15292ed75, 8.23.1-DEV reuses an idle HTTP/1.1-over-TLS connection even when a complete extra response is already buffered in OpenSSL/GnuTLS. The ef6b17cf1 fix only polls the socket: Curlcpoolconnseemshealthy lib/conncache.c:1073, called from lib/url.c:1071 uses Curlconnisalive, and...