Packet Storm

Dovecot IMAP server versions 2.2 and 2.3 suffer from denial of service and resource exhaustion vulnerabilities.

Dovecot IMAP server versions 2.2 and 2.3 have an issue where 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.

The Ewon Cosy+ is a VPN gateway used for remote access and maintenance in industrial environments. Due to the use of a hardcoded cryptographic key, an attacker is able to decrypt encrypted data and retrieve sensitive information.

The Ewon Cosy+ is a VPN gateway used for remote access and maintenance in industrial environments. Due to improper neutralization of parameters read from a user-controlled configuration file, an authenticated attacker is able to inject and execute OS commands on the device.

The Ewon Cosy+ is a VPN gateway used for remote access and maintenance in industrial environments. The credentials used for the basic authentication against the web interface of Cosy+ are stored in the cookie "credentials" after a successful login. An attacker with access to a victim's browser is able to retrieve the administrative password of Cosy+.

The Ewon Cosy+ is a VPN gateway used for remote access and maintenance in industrial environments. If login against the FTP service of the Cosy+ fails, the submitted username is saved in a log. This log is included in the Cosy+ web interface without neutralizing the content. As a result, an unauthenticated attacker is able to inject HTML/JavaScript code via the username of an FTP login attempt.

Sysdig Falco is a behavioral activity monitoring agent that is open source and comes with native support for containers. Falco lets you define highly granular rules to check for activities involving file and network activity, process execution, IPC, and much more, using a flexible syntax. Falco will notify you when these rules are violated. You can think about Falco as a mix between snort, ossec and strace.

Ubuntu Security Notice 6966-1 - Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. It was discovered that Firefox did not properly manage certain memory operations when processing graphics shared memory. An attacker could potentially exploit this issue to escape the sandbox.

Ubuntu Security Notice 6837-2 - It was discovered that Rack incorrectly parsed certain media types. A remote attacker could possibly use this issue to cause Rack to consume resources, leading to a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that Rack incorrectly handled certain Range headers. A remote attacker could possibly use this issue to cause Rack to create large responses, leading to a denial of service.

Debian Linux Security Advisory 5750-1 - Support for the "strict kex" SSH extension has been backported to AsyncSSH (a Python implementation of the SSHv2 protocol) as hardening against the Terrapin attack.