CyberRota Analysis
AI-GeneratedThe vulnerability affects the pglogical replication protocol, specifically the apply worker's insufficient validation of field lengths in incoming messages, leading to potential out-of-bounds reads. This can result in the disclosure of adjacent process memory or cause the worker to crash, primarily impacting managed deployments where non-superuser roles can create subscriptions. Organizations utilizing pglogical replication should prioritize addressing this issue, especially if they have delegated subscription creation privileges to less trusted users.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
pglogical's apply worker does not sufficiently validate the length of certain fields in incoming replication protocol messages before copying them, resulting in an out-of-bounds read. A party acting as the publisher for a subscription, for example a non-PostgreSQL endpoint that speaks the pglogical replication protocol, can return crafted messages that cause the subscriber's apply worker to read beyond the bounds of an allocated buffer, disclosing adjacent process memory or crashing the worker. To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
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