ruby: StartTLS stripping vulnerability in Net::IMAP

Ruby's Net::IMAP module did not raise an exception when receiving an unexpected response to the STARTTLS command and the connection was not upgraded to use TLS. A man-in-the-middle attacker could use this flaw to prevent Ruby applications using Net::IMAP to enable TLS encryption for a connection ...

Important: Red Hat Security Advisory: rh-ruby27-ruby security update

An update for rh-ruby27-ruby is now available for Red Hat Software Collections. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabili...

Ubuntu: Security Advisory (USN-5079-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

Amazon Linux 2 : thunderbird (ALAS-2021-1709)

The version of thunderbird installed on the remote host is prior to 78.13.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1709 advisory. If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses...

USN-5079-2: curl vulnerabilities

USN-5079-1 fixed several vulnerabilities in curl. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Patrick Monnerat discovered that curl incorrectly handled upgrades to TLS. When receiving certain responses from servers, curl woul...

USN-5079-2 curl vulnerabilities

USN-5079-1 fixed several vulnerabilities in curl. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Patrick Monnerat discovered that curl incorrectly handled upgrades to TLS. When receiving certain responses from servers, curl woul...

Information Disclosure

Fetchmail is vulnerable to informaiton disclosure. It fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH...

USN-5079-1: curl vulnerabilities

It was discovered that curl incorrect handled memory when sending data to an MQTT server. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2021-22945 Patrick Monnerat discovered that curl incorrectly handled...

USN-5079-1 curl vulnerabilities

It was discovered that curl incorrect handled memory when sending data to an MQTT server. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2021-22945 Patrick Monnerat discovered that curl incorrectly handled...

CURL-CVE-2021-22947 STARTTLS protocol injection via MITM

When curl connects to an IMAP, POP3, SMTP or FTP server to exchange data securely using STARTTLS to upgrade the connection to TLS level, the server can still respond and send back multiple responses before the TLS upgrade. Such multiple pipelined responses are cached by curl. curl would then...

STARTTLS protocol injection via MITM

When curl connects to an IMAP, POP3, SMTP or FTP server to exchange data securely using STARTTLS to upgrade the connection to TLS level, the server can still respond and send back multiple responses before the TLS upgrade. Such multiple pipelined responses are cached by curl. curl would then...

cURL -- Multiple vulnerabilities

The cURL project reports: UAF and double-free in MQTT sending CVE-2021-22945 Protocol downgrade required TLS bypassed CVE-2021-22946 STARTTLS protocol injection via MITM CVE-2021-22945...

PT-2021-4653 · Curl +10 · Curl +10

Name of the Vulnerable Software and Affected Versions: curl versions 7.20.0 through 7.78.0 Description: The issue concerns the implementation of the STARTTLS protocol in curl, which can lead to insufficient authentication of data. This allows a Man-In-The-Middle attacker to inject fake responses...

CVE-2021-22947

When curl = 7.20.0 and = 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instea...

curl: CVE-2021-22947: STARTTLS protocol injection via MITM

Summary: A man-in-the-middle can inject cleartext forged responses to future encrypted commands by pipelining them to the STARTTLS response. Steps To Reproduce: Use the attached test case within the curl test system. It is based on IMAP FETCH with explicit TLS. Upon test failure, the downloaded...

ROS-2-2127

2.2127 Vulnerability in Mozilla Thunderbird email client CVE-2021-29970, CVE-2021-30547, CVE-2021-29976, CVE-2021-29969. 1. Vulnerability Description: CVE-2021-29970 Vulnerability in Mozilla Thunderbird email client, related to HTML content processing error. Exploitation of the vulnerability coul...

ROS-2-2165

2.2165 Vulnerability in Mozilla Thunderbird email client CVE-2021-29970, CVE-2021-30547, CVE-2021-29976, CVE-2021-29969. 1. Vulnerability Description: CVE-2021-29970 Vulnerability in Mozilla Thunderbird email client, related to HTML content processing error. Exploitation of the vulnerability coul...

ROS-2-2210

2.2210 Vulnerability in Mozilla Thunderbird email client CVE-2021-29970, CVE-2021-30547, CVE-2021-29976, CVE-2021-29969 1. Vulnerability Description: CVE-2021-29970 Vulnerability in Mozilla Thunderbird email client, related to HTML content processing error. Exploitation of the vulnerability could...

ROS-2-2250

2.2250 Vulnerability in Mozilla Thunderbird email client CVE-2021-29970, CVE-2021-30547, CVE-2021-29976, CVE-2021-29969. 1. Vulnerability Description: CVE-2021-29970 Vulnerability in Mozilla Thunderbird email client, related to HTML content processing error. Exploitation of the vulnerability coul...

openSUSE: Security Advisory for dovecot23 (openSUSE-SU-2021:1225-1)

The remote host is missing an update for the 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...