CyberRota Analysis
AI-GeneratedRsync versions prior to 3.5.0 are vulnerable to a denial of service attack that allows remote attackers to exhaust system resources by using the --zt short alias for --compress-threads. This exploitation can lead to the creation of an unbounded number of Zstandard worker threads, ultimately depleting available memory and threads on the affected system. Organizations utilizing rsync for file synchronization should prioritize patching to mitigate this high-severity vulnerability.
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
rsync 3.4.2 before 3.5.0 contains a denial of service vulnerability that allows a remote sender to exhaust system resources by specifying the --zt short alias for --compress-threads, which bypasses the refuse options directive's string matching on long option names. Attackers can specify --zt=N with a large value to spawn an unbounded number of Zstandard worker threads on the receiver, exhausting available thread and memory resources.