https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 21:24:05 +0000 https://vulnerability.circl.lu/vuln/cve-2024-23184 <p><strong>Affected:</strong> Open-Xchange GmbH OX Dovecot Pro</p> <p>Having a large number of address headers (From, To, Cc, Bcc, etc.) becomes excessively CPU intensive. With 100k header lines CPU usage is already 12 seconds, and in a production environment we observed 500k header lines taking 18 minutes to parse. Since this can be triggered by external actors sending emails to a victim, this is a security issue. An external attacker can send specially crafted messages that consume target system resources and cause outage. One can implement restrictions on address headers on MTA component preceding Dovecot. No publicly available exploits are known.</p> <p><strong>Affected:</strong> Open-Xchange GmbH OX Dovecot Pro</p> <p>Having a large number of address headers (From, To, Cc, Bcc, etc.) becomes excessively CPU intensive. With 100k header lines CPU usage is already 12 seconds, and in a production environment we observed 500k header lines taking 18 minutes to parse. Since this can be triggered by external actors sending emails to a victim, this is a security issue. An external attacker can send specially crafted messages that consume target system resources and cause outage. One can implement restrictions on address headers on MTA component preceding Dovecot. No publicly available exploits are known.</p> https://vulnerability.circl.lu/vuln/cve-2024-23184 https://vulnerability.circl.lu/vuln/usn-6982-1 <p><strong>Affected:</strong> Ubuntu:24.04:LTS: dovecot</p> <p>It was discovered that Dovecot did not not properly have restrictions on ithe size of address headers. A remote attacker could possibly use this issue to cause denial of service. (CVE-2024-23184, CVE-2024-23185)</p> <p><strong>Affected:</strong> Ubuntu:24.04:LTS: dovecot</p> <p>It was discovered that Dovecot did not not properly have restrictions on ithe size of address headers. A remote attacker could possibly use this issue to cause denial of service. (CVE-2024-23184, CVE-2024-23185)</p> https://vulnerability.circl.lu/vuln/usn-6982-1