What’s Vulnerable › Vulnerabilities

CVE-2017-18359

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-01-25 · updated 2026-06-17
• Weakness: CWE-20

Description

PostGIS 2.x before 2.3.3, as used with PostgreSQL, allows remote attackers to cause a denial of service via crafted ST_AsX3D function input, as demonstrated by an abnormal server termination for "SELECT ST_AsX3D('LINESTRING EMPTY');" because empty geometries are mishandled.

Affected products

• Debian Linux: 8.0, 9.0
• PostGIS: from 2.0.0 before 2.3.3 — fixed in 2.3.3

How to fix

Upgrade to a fixed version: PostGIS 2.3.3. Check the vendor advisory for mitigations.

References

• https://lists.debian.org/debian-lts-announce/2019/01/msg00030.html
• https://lists.debian.org/debian-lts-announce/2021/12/msg00020.html
• https://trac.osgeo.org/postgis/changeset/15444
• https://trac.osgeo.org/postgis/changeset/15445
• https://trac.osgeo.org/postgis/ticket/3704
• https://lists.debian.org/debian-lts-announce/2019/01/msg00030.html
• https://lists.debian.org/debian-lts-announce/2021/12/msg00020.html
• https://trac.osgeo.org/postgis/changeset/15444
• https://trac.osgeo.org/postgis/changeset/15445
• https://trac.osgeo.org/postgis/ticket/3704

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