Mozilla: Downgrade attack on SMTP STARTTLS connections

Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...

SUSE-SU-2021:3297-1 Security update for curl

This update for curl fixes the following issues: - CVE-2021-22947: Fixed STARTTLS protocol injection via MITM bsc1190374. - CVE-2021-22946: Fixed protocol downgrade required TLS bypassed bsc1190373...

CURL-CVE-2021-22946 Protocol downgrade required TLS bypassed

A user can tell curl to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server --ssl-reqd on the command line or CURLOPTUSESSL set to CURLUSESSLCONTROL or CURLUSESSLALL with libcurl. This requirement could be bypassed if the server would return a properly crafted but...

Security Bulletin: Multiple vulnerabilities in WebSphere Application Server affect IBM Rational products based on IBM Jazz technology

Summary Multiple vulnerabilities in WebSphere Application Server traditional bundled with IBM Jazz Team Server based Applications affect the following products: Collaborative Lifecycle Management CLM, Rational DOORS Next Generation RDNG, Rational Engineering Lifecycle Manager RELM, Rational Team...

Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage

The Mozilla Foundation Security Advisory describes this flaw as: If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection...

wildfly: The 'enabled-protocols' value in legacy security is not respected if OpenSSL security provider is in use

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

wildfly: The 'enabled-protocols' value in legacy security is not respected if OpenSSL security provider is in use

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

wildfly: The 'enabled-protocols' value in legacy security is not respected if OpenSSL security provider is in use

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

CVE-2019-14887

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

Security Bulletin: IBM Integration Bus affected by WAS is susceptible to TLS downgrade if using FIPS and JVM property if using non WAS keystore/truststore

Summary IBM Integration Bus ships with a version of the WSRR thin client which is susceptible to vulnerabilities which were reported and have been addressed' Vulnerability Details CVEID: CVE-2018-1719 DESCRIPTION: IBM WebSphere Application Server could provide weaker than expected security under...

wildfly: The 'enabled-protocols' value in legacy security is not respected if OpenSSL security provider is in use

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

CVE-2019-14887

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

Design/Logic Flaw

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

wildfly: The 'enabled-protocols' value in legacy security is not respected if OpenSSL security provider is in use

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

Debian: Security Advisory (DSA-4611-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2020 Greenbone AG 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-only ifdescription...

Debian DSA-4611-1 : opensmtpd - security update

Qualys discovered that the OpenSMTPD SMTP server performed insufficient validation of email addresses which could result in the execution of arbitrary commands as root. In addition this update fixes a denial of service by triggering an opportunistic TLS downgrade. %NASLMINLEVEL 70300 C Tenable...

[SECURITY] [DSA 4611-1] opensmtpd security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4611-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff January 29, 2020 https://www.debian.org/security/faq -...

DEBIAN-CVE-2019-17023

After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox 72...

IBM WebSphere Application Server 8.5.x < 8.5.5.15 / 9.0.0.x < 9.0.0.9 TLS Downgrade Vulnerability (CVE-2018-1719)

The IBM WebSphere Application Server running on the remote host is version 8.5.x prior to 8.5.5.15, or 9.0.0.x prior to 9.0.0.9. It is, therefore, potentially affected by TLS downgrade vulnerability. C Tenable Network Security, Inc. include'compat.inc'; if description scriptid125595;...

Security Bulletin: Multiple vulnerabilities in OpenSSL affect IBM Flex System Manager (FSM) (CVE-2014-3508, CVE-2014-3509, CVE-2014-3505, CVE-2014-3506, CVE-2014-3507, CVE-2014-3510, and CVE-2014-3511)

Summary There are multiple vulnerabilities in OpenSSL that is used by IBM Flex System Manager FSM. These issues were disclosed on August 6, 2014 by the OpenSSL Project. Vulnerability Details Summary There are multiple vulnerabilities in OpenSSL that is used by IBM Flex System Manager FSM. These...