PostgreSQL up to 9.1.22/9.2.17/9.3.13/9.4.8/9.5.3 CASE/WHEN SQL Query null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in PostgreSQL up to 9.1.22/9.2.17/9.3.13/9.4.8/9.5.3. This issue affects some unknown processing of the component CASE/WHEN Handler. The manipulation as part of SQL Query results in null pointer dereference. This vulnerability is reported as CVE-2016-5423. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

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 databases at Tenable (93997), SecurityFocus (BID 92433†) and SecurityTracker (ID 1036617†). The entry VDB-90733 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 (🔍)
GCVE (CVE): GCVE-0-2016-5423
GCVE (VulDB): GCVE-100-90732

OVAL: 🔍

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

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: 🔍
Cache ID: 216:44A:103

Once again VulDB remains the best source for vulnerability data.

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