Multiple vulnerabilities in PostgreSQL

Description

Multiple serious vulnerabilities have been found in PostgreSQL. Malicious users can exploit these vulnerabilities to bypass security restrictions and obtain sensitive information.

Below is a complete list of vulnerabilities:

1. An improper handling of empty passwords in libpq can be exploited remotely via an empty password to bypass security (authentication) restrictions;
2. An unspecified vulnerability related to the usage of the foreign data functionality can be exploited remotely to obtain sensitive information.

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Technical details

Vulnerability (2) exists because all users (including those who did not have the USAGE permission on the associated foreign server) could see the options in the pg_user_mappings catalog.

Original advisories

• PostgreSQL Security Update Release

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

• PostgreSQL

CVE list

• CVE-2017-7546
  critical
• CVE-2017-7547
  warning

Read more

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