High severity8.3NVD Advisory· Published Dec 9, 2016· Updated Jun 17, 2026

CVE-2016-5423

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

PostgreSQL/PostgreSQL47 versions
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*+ 46 more
- cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*range: <=9.1.22
- cpe:2.3:a:postgresql:postgresql:9.2:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.10:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.11:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.12:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.13:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.14:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.15:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.16:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.17:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.7:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.8:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.2.9:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.10:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.11:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.12:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.13:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.8:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.3.9:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4.5:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4.6:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4.7:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.4.8:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.5:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:9.5.3:*:*:*:*:*:*:*
- (no CPE)range: <9.1.23, <9.2.18, <9.3.14, <9.4.9, <9.5.4
Debian/linux
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
osv-coords18 versions
pkg:rpm/opensuse/postgresql93&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/postgresql94&distro=openSUSE%20Tumbleweed pkg:rpm/opensuse/postgresql95&distro=openSUSE%20Tumbleweed pkg:rpm/suse/postgresql93&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/postgresql93&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012 pkg:rpm/suse/postgresql94&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/postgresql94&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/postgresql94&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/postgresql94&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/postgresql94&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/postgresql94&distro=SUSE%20Manager%202.1 pkg:rpm/suse/postgresql94-libs&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1 pkg:rpm/suse/postgresql94-libs&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/postgresql94-libs&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1 pkg:rpm/suse/postgresql94-libs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/postgresql94-libs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/postgresql94-libs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4 pkg:rpm/suse/postgresql94-libs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1
< 9.3.15-1.1+ 17 more
- (no CPE)range: < 9.3.15-1.1
- (no CPE)range: < 9.4.10-1.1
- (no CPE)range: < 9.5.4-1.2
- (no CPE)range: < 9.3.14-19.2
- (no CPE)range: < 9.3.14-19.2
- (no CPE)range: < 9.4.9-14.1
- (no CPE)range: < 9.4.9-0.19.1
- (no CPE)range: < 9.4.9-14.1
- (no CPE)range: < 9.4.9-0.19.1
- (no CPE)range: < 9.4.9-14.1
- (no CPE)range: < 9.4.9-0.19.1
- (no CPE)range: < 9.4.9-14.1
- (no CPE)range: < 9.4.9-0.19.1
- (no CPE)range: < 9.4.9-14.1
- (no CPE)range: < 9.4.9-0.19.1
- (no CPE)range: < 9.4.9-14.1
- (no CPE)range: < 9.4.9-0.19.1
- (no CPE)range: < 9.4.9-14.1

Patches

Vulnerability mechanics

References

www.postgresql.org/about/news/1688/nvdPatchVendor Advisory
www.debian.org/security/2016/dsa-3646nvdThird Party Advisory
www.securityfocus.com/bid/92433nvdThird Party AdvisoryVDB Entry
www.securitytracker.com/id/1036617nvdThird Party AdvisoryVDB Entry
bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party AdvisoryVDB Entry
www.postgresql.org/docs/current/static/release-9-1-23.htmlnvdRelease NotesVendor Advisory
www.postgresql.org/docs/current/static/release-9-2-18.htmlnvdRelease NotesVendor Advisory
www.postgresql.org/docs/current/static/release-9-3-14.htmlnvdRelease NotesVendor Advisory
www.postgresql.org/docs/current/static/release-9-4-9.htmlnvdRelease NotesVendor Advisory
www.postgresql.org/docs/current/static/release-9-5-4.htmlnvdRelease NotesVendor Advisory
rhn.redhat.com/errata/RHSA-2016-1781.htmlnvd
rhn.redhat.com/errata/RHSA-2016-1820.htmlnvd
rhn.redhat.com/errata/RHSA-2016-1821.htmlnvd
rhn.redhat.com/errata/RHSA-2016-2606.htmlnvd
access.redhat.com/errata/RHSA-2017:2425nvd
security.gentoo.org/glsa/201701-33nvd

News mentions

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