CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.1	$0-$5k	0.00

A vulnerability, which was classified as critical, was found in PostgreSQL up to 9.1.22/9.2.17/9.3.13/9.4.8/9.5.3 (Database Software). Affected is an unknown code block of the component CASE/WHEN Handler. The manipulation as part of a SQL Query leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 08/11/2016 as 2016-08-11 Security Update Release as confirmed news (Website). The advisory is shared for download at postgresql.org. This vulnerability is traded as CVE-2016-5423 since 06/10/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The advisory points out:

Two security holes have been closed by this release

The vulnerability scanner Nessus provides a plugin with the ID 93997 (openSUSE Security Update : postgresql94 (openSUSE-2016-1161)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370195 (Red Hat Update for rh-postgresql94-postgresql (RHSA-2016:1781)).

Upgrading to version 9.1.23, 9.2.18, 9.3.14, 9.4.9 or 9.5.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (93997). The entry 90733 is pretty similar.

Productinfo

Type

• Database Software

Name

• PostgreSQL

Version

• 9.1.0
• 9.1.1
• 9.1.2
• 9.1.3
• 9.1.4
• 9.1.5
• 9.1.6
• 9.1.7
• 9.1.8
• 9.1.9
• 9.1.10
• 9.1.11
• 9.1.12
• 9.1.13
• 9.1.14
• 9.1.15
• 9.1.16
• 9.1.17
• 9.1.18
• 9.1.19
• 9.1.20
• 9.1.21
• 9.1.22
• 9.2.0
• 9.2.1
• 9.2.2
• 9.2.3
• 9.2.4
• 9.2.5
• 9.2.6
• 9.2.7
• 9.2.8
• 9.2.9
• 9.2.10
• 9.2.11
• 9.2.12
• 9.2.13
• 9.2.14
• 9.2.15
• 9.2.16
• 9.2.17
• 9.3.0
• 9.3.1
• 9.3.2
• 9.3.3
• 9.3.4
• 9.3.5
• 9.3.6
• 9.3.7
• 9.3.8
• 9.3.9
• 9.3.10
• 9.3.11
• 9.3.12
• 9.3.13
• 9.4.0
• 9.4.1
• 9.4.2
• 9.4.3
• 9.4.4
• 9.4.5
• 9.4.6
• 9.4.7
• 9.4.8
• 9.5.0
• 9.5.1
• 9.5.2
• 9.5.3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 8.3
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 93997
Nessus Name: openSUSE Security Update : postgresql94 (openSUSE-2016-1161)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 865728
OpenVAS Name: Fedora Update for postgresql FEDORA-2016-30b01bdedd
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: PostgreSQL 9.1.23/9.2.18/9.3.14/9.4.9/9.5.4

Timelineinfo

06/10/2016 🔍
08/11/2016 +62 days 🔍
08/11/2016 +0 days 🔍
08/11/2016 +0 days 🔍
08/12/2016 +1 days 🔍
08/15/2016 +3 days 🔍
10/12/2016 +58 days 🔍
12/09/2016 +58 days 🔍
09/13/2022 +2104 days 🔍

Sourcesinfo

Product: postgresql.org

Advisory: 2016-08-11 Security Update Release
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-5423 (🔍)
OVAL: 🔍

SecurityTracker: 1036617
SecurityFocus: 92433 - PostgreSQL CVE-2016-5423 NULL Pointer Dereference Remote Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 08/15/2016 10:23
Updated: 09/13/2022 18:43
Changes: 08/15/2016 10:23 (74), 03/26/2019 08:37 (12), 09/13/2022 18:43 (4)
Complete: 🔍

Discussion

Do you know our Splunk app?

Download it now for free!