USN-4384-1 gnutls28 vulnerability

It was discovered that GnuTLS incorrectly handled session ticket encryption keys. A remote attacker could possibly use this issue to bypass authentication or recover sensitive information...

GnuTLS Encryption Problem Vulnerability (CNVD-2020-53541)

GnuTLS is a free secure communication library for implementing SSL, TLS and DTLS protocols. A security vulnerability exists in GnuTLS version 3.6.14. An attacker can exploit this vulnerability by performing a man-in-the-middle attack to bypass authentication in TLS version 1.3 and recover previou...

FreeBSD : GnuTLS -- flaw in TLS session ticket key construction (ef5b4f5f-a658-11ea-80d7-001cc0382b2f)

The GnuTLS project reports : It was found that GnuTLS 3.6.4 introduced a regression in the TLS protocol implementation. This caused the TLS server to not securely construct a session ticket encryption key considering the application supplied secret, allowing a MitM attacker to bypass authenticati...

CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

ALPINE-CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

DEBIAN-CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

Authentication flaw

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

UBUNTU-CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 is affected by a flaw in how the TLS session-ticket encryption key is constructed, caused by an 2018-09-18 commit. The earliest affected version is 3.6.4 . Until the first key rotation, the TLS server uses incorrect data in place of a key derived from the application, l...

CVE-2020-13777

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3. The earliest affected version is 3.6.4 2018-09-24 because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS...

Slackware 14.2 / current : gnutls (SSA:2020-155-01)

New gnutls packages are available for Slackware 14.2 and -current to fix security issues. C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Slackware Security Advisory 2020-155-01. The text itself is copyright C Slackware Linux, Inc...

CVE-2020-13777

A flaw was found in GnuTLS, in versions starting from 3.6.4, where it does not session the ticket encryption key in a secure fashion by the application which is connecting. This flaw allows an attacker to craft a man-in-the-middle-attack, with the ability to bypass the TLS1.3 authentication and...

[slackware-security] gnutls

New gnutls packages are available for Slackware 14.2 and -current to fix security issues. Here are the details from the Slackware 14.2 ChangeLog: patches/packages/gnutls-3.6.14-i586-1slack14.2.txz: Upgraded. Fixed insecure session ticket key construction, since 3.6.4. The TLS server would not bin...

GnuTLS -- flaw in TLS session ticket key construction

The GnuTLS project reports: It was found that GnuTLS 3.6.4 introduced a regression in the TLS protocol implementation. This caused the TLS server to not securely construct a session ticket encryption key considering the application supplied secret, allowing a MitM attacker to bypass authenticatio...

PT-2020-13675 · Gnu +7 · Gnutls +7

Name of the Vulnerable Software and Affected Versions: GnuTLS versions 3.6.4 through 3.6.14 Description: The issue is related to incorrect cryptography used for encrypting a session ticket, leading to a loss of confidentiality in TLS 1.2 and an authentication bypass in TLS 1.3. This allows an...

gnutls:gnutls_client_fuzzer: Null-dereference READ with empty stacktrace

Project: https://gitlab.com/gnutls/gnutls.git Detailed Report: https://oss-fuzz.com/testcase?key=5102053377703936 Project: gnutls Fuzzing Engine: afl Fuzz Target: gnutlsclientfuzzer Job Type: aflasangnutls Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x000000000000 Crash...