SB2019051001 - Multiple vulnerabilities in PostgreSQL

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Main Vulnerability Database SB2019051001

SB2019051001 - Multiple vulnerabilities in PostgreSQL

Published: May 10, 2019

Security Bulletin ID SB2019051001
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 vulnerabilities.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-10127)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the BigSQL Windows installer does not remove permissive ACL entries from installed files and directories. A local user can gain unauthorized access to PostgreSQL directory.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-10128)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the EnterpriseDB Windows installer does not remove permissive ACL entries from installed files and directories. A local user can gain unauthorized access to PostgreSQL directory.


3) Memory leak (CVE-ID: CVE-2019-10129)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to read parts of system memory.

The vulnerability exists due memory leak when processing INSERT queries. A remote authenticated user can execute a specially crafted INSERT statement to a partitioned table and read parts of memory.


4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-10130)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to incorrect implementation of row security policies. A remote attacker can use statistics, generated for tables to bypass row security policies and gain access to restricted rows.


Remediation

Install update from vendor's website.

References