net-imap: Net::IMAP vulnerable to possible DoS by memory exhaustion

A flaw was found in Ruby's net-imap library. In certain versions, there is a possibility for denial of service by memory exhaustion in the net-imap response parser. At any time while the client is connected, a malicious server can send highly compressed uid-set data, which is automatically read b...

RHEL 9 : ruby:3.3 (RHSA-2025:4493)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:4493 advisory. Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system...

Oracle Linux 9 : ruby:3.3 (ELSA-2025-4493)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-4493 advisory. - Fix Net::IMAP vulnerable to possible DoS by memory exhaustion. CVE-2025-25186 - Fix Denial of Service in CGI::Cookie.parse. CVE-2025-27219 Resolves:...

SUSE CVE-2025-37742

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uninit-value access of imap allocated in the diMount function syzbot reports that hexdumptobuffer is using uninit-value: ===================================================== BUG: KMSAN: uninit-value in...

UBUNTU-CVE-2025-37742

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uninit-value access of imap allocated in the diMount function syzbot reports that hexdumptobuffer is using uninit-value: ===================================================== BUG: KMSAN: uninit-value in...

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 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...

DEBIAN-CVE-2025-43857

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...

CVE-2025-43857

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...

UBUNTU-CVE-2025-43857

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...

CVE-2025-43857

Net::IMAP for Ruby is vulnerable to denial of service via memory exhaustion when processing server responses containing a literal byte count. A malicious server can trigger the client’s receiver thread to allocate memory for the indicated size, potentially exhausting memory during any active conn...

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...

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...

CVE-2025-43857

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...

CVE-2025-43857

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...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value in the ResponseReader class. An attacker can cause the application to allocate excessive memory and trigger a denial of service by including "literal" strings in responses sent to...

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...

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...

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...

PT-2025-18094 · Net::Imap +3 · Net::Imap +3

Name of the Vulnerable Software and Affected Versions: Net::IMAP versions prior to 0.5.7, 0.4.20, 0.3.9, and 0.2.5 Description: The issue allows for denial of service by memory exhaustion when Net::IMAP reads server responses. A malicious server can send a "literal" byte count, which is...