NVD - CVE-2016-5423

CVE-2016-5423 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

PostgreSQL before 9.1.23, 9.2.x before 9.2.18, 9.3.x before 9.3.14, 9.4.x before 9.4.9, and 9.5.x before 9.5.4 allow remote authenticated users to cause a denial of service (NULL pointer dereference and server crash), obtain sensitive memory information, or possibly execute arbitrary code via (1) a CASE expression within the test value subexpression of another CASE or (2) inlining of an SQL function that implements the equality operator used for a CASE expression involving values of different types.

Source: MITRE
Description Last Modified: 12/09/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.3 HIGH
Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H (V3 legend)
Impact Score: 5.5
Exploitability Score: 2.8

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://rhn.redhat.com/errata/RHSA-2016-1781.html
http://rhn.redhat.com/errata/RHSA-2016-1820.html
http://rhn.redhat.com/errata/RHSA-2016-1821.html
http://rhn.redhat.com/errata/RHSA-2016-2606.html
http://www.debian.org/security/2016/dsa-3646	Third Party Advisory
http://www.securityfocus.com/bid/92433	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036617	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2425
https://bugzilla.redhat.com/show_bug.cgi?id=1364001	Issue Tracking Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201701-33
https://www.postgresql.org/about/news/1688/	Patch Vendor Advisory
https://www.postgresql.org/docs/current/static/release-9-1-23.html	Release Notes Vendor Advisory
https://www.postgresql.org/docs/current/static/release-9-2-18.html	Release Notes Vendor Advisory
https://www.postgresql.org/docs/current/static/release-9-3-14.html	Release Notes Vendor Advisory
https://www.postgresql.org/docs/current/static/release-9-4-9.html	Release Notes Vendor Advisory
https://www.postgresql.org/docs/current/static/release-9-5-4.html	Release Notes Vendor Advisory

Technical Details

Vulnerability Type (View All)

NULL Pointer Dereference (CWE-476)

Vulnerable software and versions Switch to CPE 2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found - show changes

CVE Modified by MITRE - 1/4/2018 9:31:01 PM

Action	Type	New Value
Added	Reference	http://rhn.redhat.com/errata/RHSA-2016-1781.html [No Types Assigned]
Added	Reference	http://rhn.redhat.com/errata/RHSA-2016-1820.html [No Types Assigned]
Added	Reference	http://rhn.redhat.com/errata/RHSA-2016-1821.html [No Types Assigned]
Added	Reference	http://rhn.redhat.com/errata/RHSA-2016-2606.html [No Types Assigned]
Added	Reference	https://access.redhat.com/errata/RHSA-2017:2425 [No Types Assigned]

Initial Analysis - 12/14/2016 12:59:40 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 3024 characters. View Entire Change Record Configuration 1 OR cpe:2.3:o:debian:debian_linux:8.0::::::: Configuration 2 OR cpe:2.3:a:postgresql:postgresql:9.5.3::::::: cpe:2.3:a:postgresql:postgresql:9.5.2::::::: cpe:2.3:a:postgresql:postgresql:9.5.1::::::: cpe:2.3:a:postgresql:postgresql:9.5::::::: cpe:2.3:a:postgresql:postgresql:9.4.8::::::: cpe:2.3:a:postgresql:postgresql:9.4.7::::::: *cpe:2.
Added	CVSS V2		(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Added	CVSS V3		AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Added	CWE		CWE-476
Changed	Reference Type	http://www.debian.org/security/2016/dsa-3646 No Types Assigned	http://www.debian.org/security/2016/dsa-3646 Third Party Advisory
Changed	Reference Type	http://www.securityfocus.com/bid/92433 No Types Assigned	http://www.securityfocus.com/bid/92433 Third Party Advisory, VDB Entry
Changed	Reference Type	http://www.securitytracker.com/id/1036617 No Types Assigned	http://www.securitytracker.com/id/1036617 Third Party Advisory, VDB Entry
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=1364001 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=1364001 Third Party Advisory, VDB Entry, Issue Tracking
Changed	Reference Type	https://www.postgresql.org/about/news/1688/ No Types Assigned	https://www.postgresql.org/about/news/1688/ Vendor Advisory, Patch
Changed	Reference Type	https://www.postgresql.org/docs/current/static/release-9-1-23.html No Types Assigned	https://www.postgresql.org/docs/current/static/release-9-1-23.html Release Notes, Vendor Advisory
Changed	Reference Type	https://www.postgresql.org/docs/current/static/release-9-2-18.html No Types Assigned	https://www.postgresql.org/docs/current/static/release-9-2-18.html Release Notes, Vendor Advisory
Changed	Reference Type	https://www.postgresql.org/docs/current/static/release-9-3-14.html No Types Assigned	https://www.postgresql.org/docs/current/static/release-9-3-14.html Release Notes, Vendor Advisory
Changed	Reference Type	https://www.postgresql.org/docs/current/static/release-9-4-9.html No Types Assigned	https://www.postgresql.org/docs/current/static/release-9-4-9.html Release Notes, Vendor Advisory
Changed	Reference Type	https://www.postgresql.org/docs/current/static/release-9-5-4.html No Types Assigned	https://www.postgresql.org/docs/current/static/release-9-5-4.html Release Notes, Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2016-5423
NVD Published Date:
12/09/2016
NVD Last Modified:
01/04/2018

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Information Technology Laboratory

National Vulnerability Database