THREATPORT/VULNERABILITY/CVE-2016-5423
HIGH SEVERITY

CVE-2016-5423

Debian Linux vulnerability

CVSS
8.3
EPSS
6.0%
EPSS pct
93th
Exploited
No known
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.
Affected vendor
Debian
Affected product
Debian Linux
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Weakness type (CWE)
  • CWE-476 — NULL Pointer Dereference
Published
2016-12-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 6.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2016-5423

  • Confirm whether Debian Debian Linux is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-5423.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-5423

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