Dozens of STARTTLS Related Flaws Found Affecting Popular Email Clients

Security researchers have disclosed as many as 40 different vulnerabilities associated with an opportunistic encryption mechanism in mail clients and servers that could open the door to targeted man-in-the-middle MitM attacks, permitting an intruder to forge mailbox content and steal credentials...

Fedora: Security Advisory for curl (FEDORA-2021-5d21b90a30)

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...

An issue was discovered in Ruby through 2.6.7 2.7.x through 2.7.3 and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command aka a "StartTLS stripping attack."

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CVE-2021-38372

In KDE Trojita 0.7, man-in-the-middle attackers can create new folders because untagged responses from an IMAP server are accepted before STARTTLS...

CVE-2021-38370

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS...

CVE-2021-38370

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS...

CVE-2021-38370

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS...

Design/Logic Flaw

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS...

CVE-2021-38372

In KDE Trojita 0.7, man-in-the-middle attackers can create new folders because untagged responses from an IMAP server are accepted before STARTTLS...

Code injection

In KDE Trojita 0.7, man-in-the-middle attackers can create new folders because untagged responses from an IMAP server are accepted before STARTTLS...

UBUNTU-CVE-2021-38370

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS...

CVE-2021-38372

CVE-2021-38372 affects KDE Trojita 0.7. The issue arises because untagged IMAP responses are accepted before STARTTLS, enabling man-in-the-middle attackers to create new folders. Root cause stated as untagged responses being processed prior to STARTTLS. No exploitation details or patch/version in...

CVE-2021-38372

In KDE Trojita 0.7, man-in-the-middle attackers can create new folders because untagged responses from an IMAP server are accepted before STARTTLS...

CVE-2021-38370

The CVE describes Alpine before 2.25 allowing untagged IMAP responses before STARTTLS, potentially leaking information. Affected component: Alpine IMAP handling. Root cause: insecure handling of IMAP responses prior to TLS upgrade. Impact per sources: information leakage (and related issues) when...

CVE-2021-38370

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS...

CVE-2021-38370

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS...

CVE-2021-38370

In Alpine before 2.25, untagged responses from an IMAP server are accepted before STARTTLS...

CentOS 8 : ruby:2.7 (CESA-2021:3020)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:3020 advisory. - rubygem-bundler: Dependencies of gems with explicit source may be installed from a different source CVE-2020-36327 - rubygem-rdoc: Command injection...

ruby:2.7 security update

ruby 2.7.4-137 - Upgrade to Ruby 2.7.4. - Fix command injection vulnerability in RDoc. Resolves: rhbz1986768 - Fix FTP PASV command response can cause Net::FTP to connect to arbitrary host. Resolves: rhbz1986812 - Fix StartTLS stripping vulnerability in Net::IMAP. Resolves: rhbz1986813 - Upgrade ...

CVE-2021-29969

If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses prior to the completion of the STARTTLS handshake, then Thunderbird didn't ignore the injected data. This could have resulted in Thunderbird showing incorrect information, for...