CyberRota Analysis
AI-GeneratedThe vulnerability affects the Zeroconf library, specifically prior to version 0.149.6, where certain logging methods can lead to unbounded memory growth due to the retention of attacker-influenced error messages. This can result in degraded performance of mDNS-dependent features or even cause the process to be terminated due to out-of-memory conditions. Organizations using Zeroconf for multicast DNS service discovery should prioritize updating to the latest version to mitigate this risk.
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
Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.6, DNSIncoming._log_exception_debug and the four QuietLogger exception-dedup methods stored an unbounded _seen_logs dictionary keyed by attacker-influenced IncomingDecodeError messages, retaining sys.exc_info() tracebacks whose frame locals kept raw packet self.data buffers and allowing unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb) to drive memory growth until mDNS-dependent features degrade or the process is OOM-killed. This issue is fixed in version 0.149.6.