CVE-2023-26433

When adding an external mail account, processing of IMAP "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue IMAP service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now limit accepted IMAP server...

The vulnerability of the Net::IMAP module in the Ruby programming language, which allows a hacker to trigger a service failure

The vulnerability of the Net::IMAP module in the Ruby programming language is related to uncontrolled memory allocation. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

PT-2025-22645

Name of the Vulnerable Software and Affected Versions cyrus-imapd versions prior to 3.8.4-2.1 Description A UNIX Symbolic Link Symlink Following issue in cyrus-imapd allows escalation from cyrus to root. This issue affects openSUSE Tumbleweed. Recommendations For versions prior to 3.8.4-2.1, upda...

CVE-2025-43857 net-imap rubygem vulnerable to possible DoS by memory exhaustion

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5, there is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a maliciou...

GHSA-J3G3-5QV5-52MJ net-imap rubygem vulnerable to possible DoS by memory exhaustion

Summary There is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader...

net-imap rubygem vulnerable to possible DoS by memory exhaustion

Summary There is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader...

Internet Bug Bounty: Denial of Service by memory exhaustion in net/imap

A vulnerability was discovered in the net-imap library that allowed denial of service by memory exhaustion. The vulnerability was caused by the library automatically reading and allocating memory for the size of "literal" strings sent by the server, without any limit on the size. This could be...

Medium: ruby3.2

Issue Overview: Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time while the...

Denial Of Service

Net::IMAP is vulnerable to Denial of Service DoS. The vulnerability is due to memory exhaustion due to the response parser's use of Rangetoa, which allows a malicious server to send highly compressed uid-set data, leading to uncontrolled memory expansion...

GHSA-7FC5-F82F-CX69 Possible DoS by memory exhaustion in net-imap

Summary There is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time while the client is connected, a malicious server can send can send highly compressed uid-set data which is automatically read by the client's receiver thread. The response parser...

CVE-2025-25186

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time while the client is...

CVE-2025-25186 Net::IMAP vulnerable to possible DoS by memory exhaustion

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time while the client is...

CVE-2025-25186 Net::IMAP vulnerable to possible DoS by memory exhaustion

Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time while the client is...

PT-2025-6069

Name of the Vulnerable Software and Affected Versions Net::IMAP versions 0.3.2 through 0.3.7 Net::IMAP versions 0.4.0 through 0.4.18 Net::IMAP versions 0.5.0 through 0.5.5 Description There is a possibility for denial of service by memory exhaustion in net-imap's response parser. At any time whil...

PT-2023-25180 · Webklex +1 · Webklex/Laravel-Imap +2

Name of the Vulnerable Software and Affected Versions: PHP-IMAP versions prior to 5.3.0 Description: An unsanitized attachment filename allows any unauthenticated user to leverage a directory traversal vulnerability, which results in a remote code execution vulnerability. Every application that...

SUSE CVE-2002-2215

The imapheader function in the IMAP functionality for PHP before 4.3.0 allows remote attackers to cause a denial of service via an e-mail message with a large number of "To" addresses, which triggers an error in the rfc822writeaddress function...

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 ...

Rocky Linux 8 : thunderbird (RLSA-2021:2883)

The remote Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2021:2883 advisory. - 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...

The vulnerability of the Internet Message Access Protocol (IMAP) implementation in the Dovecot mail server allows a attacker to cause a service failure.

The vulnerability of the Internet Message Access Protocol IMAP implementation in the Dovecot mail server is related to the use of a zero pointer. Exploiting this vulnerability could allow an attacker to cause service failures remotely...

OPENSUSE-SU-2019:2278-1 Security update for dovecot23

This update for dovecot23 fixes the following issue: - CVE-2019-11500: Fixed the NUL byte handling in IMAP and ManageSieve protocol parsers. bsc1145559 - CVE-2019-11499: Fixed a vulnerability where the submission-login would crash over a TLS secured channel bsc1133625. - CVE-2019-11494: Fixed a...