CyberRota Analysis
AI-GeneratedA use-after-free vulnerability in pglogical's worker signaling code allows a worker structure to be dereferenced after its associated slot has been freed, which can occur during standard replication operations. This flaw can lead to crashes of replication workers, impacting availability, and poses a significant risk as it may be exploited for remote code execution with the privileges of the PostgreSQL backend. Database administrators and organizations utilizing pglogical for PostgreSQL replication should prioritize addressing this vulnerability to mitigate potential exploitation risks.
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 use-after-free condition exists in pglogical's worker signaling code, where a worker structure can be dereferenced after the underlying slot has been freed or recycled during normal worker lifecycle events. The condition is reachable during normal replication operation, including by a low-privileged user able to influence worker start, stop, and restart timing through permitted pglogical operations. In the typical case the condition crashes replication workers, causing an availability impact. In the worst case a use-after-free in a PostgreSQL backend can be leveraged as a remote code execution primitive at the privilege of that backend.
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