PostgreSQL Partition Keys Denial of Service Vulnerability

A vulnerability in PostgreSQL could allow an authenticated, remote attacker to cause a denial of service (DoS) condition or access sensitive information on a targeted system.

The vulnerability is due to improper processing of partition keys that contains multiple expressions by the affected software. An attacker could exploit this vulnerability by sending crafted input to a targeted system. A successful exploit could cause the affected application to crash, resulting in a DoS condition. In addition, an exploit could allow the attacker to access sensitive information from memory.

PostgreSQL has confirmed the vulnerability and released software updates.

CVE Number – CVE-2018-1052

Analysis
  • To exploit this vulnerability, an attacker must authenticate to the affected application. This access requirement may reduce the likelihood of a successful exploit.
Safeguards
  • Administrators are advised to apply the appropriate updates.

    Administrators are advised to allow only trusted users to have network access.

    Administrators are advised to allow only privileged users to access administration or management systems.

    Administrators are advised to monitor affected systems.

Vendor Announcements
Fixed Software
  • PostgreSQL has released software updates at the following link: PostgreSQL 10.2

    FreeBSD has released ports collection updates at the following link: Ports Collection Index




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