CyberRota Analysis
AI-GeneratedA vulnerability in dbus-broker allows local attackers to exploit the process file-descriptor limit, leading to fatal failures during peer setup and causing the broker to exit. This results in a denial of service for the desktop session, particularly affecting users running Flatpak applications that access the host session bus. Organizations utilizing dbus-broker in environments where local users can open multiple connections should prioritize addressing this issue to prevent potential service disruptions.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
A flaw was found in dbus-broker. When the process file-descriptor limit is reached, EMFILE/ENFILE errors during peer setup (notably SO_PEERPIDFD) are handled as fatal failures, causing the broker to exit. A local attacker who can open many connections to the user session bus can trigger this and deny service to the desktop session. Flatpak applications can reach the host session bus through the dbus proxy.