CyberRota Analysis
AI-GeneratedThe vulnerability allows authenticated attackers to bypass the configured CPU limits by repeatedly modifying active Sieve scripts, leading to potential service degradation in mail delivery due to excessive CPU and disk resource consumption. Additionally, residual compiled script files are not deleted upon script removal, exacerbating disk usage issues. Organizations utilizing Sieve for email processing should prioritize remediation to prevent resource exhaustion and maintain service integrity.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Sieve CPU resource usage is tracked in the compiled script, so an attacker that has valid credentials can reset the accounting by repeatedly changing the active script. Compiled script files are also not removed when a script is deleted or renamed. The configured Sieve CPU limit can be bypassed, allowing sustained CPU consumption, and the leftover files increase disk consumption. Both can cause degradation of service for mail delivery. Monitor system for abnormal CPU usage and disk consumption. Update to non-vulnerable version. No publicly available exploits are known.