CVE-2018-20539

There is a Segmentation fault triggered by illegal address access at liblas::SpatialReference:...

6.5 Medium

There is a Segmentation fault triggered by illegal address access at liblas::SpatialReference::GetGTIF() (spatialreference.cpp) in libLAS 1.8.1 that will cause a denial of service.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.43%Up 0.4 points since Apr 14, 2021

What each source reports

NVD Score used 6.5

There is a Segmentation fault triggered by illegal address access at liblas::SpatialReference::GetGTIF() (spatialreference.cpp) in libLAS 1.8.1 that will cause a denial of service.

Record: CVE-2018-20539
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

There is a Segmentation fault triggered by illegal address access at liblas::SpatialReference::GetGTIF() (spatialreference.cpp) in libLAS 1.8.1 that will cause a denial of service.

Record: CVE-2018-20539
Updated: 2026-11-02

EUVDEUVD-2018-13093 No score

There is a Segmentation fault triggered by illegal address access at liblas::SpatialReference::GetGTIF() (spatialreference.cpp) in libLAS 1.8.1 that will cause a denial of service.

Record: EUVD-2018-13093
Updated: 2026-11-03

GitHub AdvisoriesGHSA-fh22-7fx9-qh2m 6.5

There is a Segmentation fault triggered by illegal address access at liblas::SpatialReference:...

There is a Segmentation fault triggered by illegal address access at liblas::SpatialReference::GetGTIF() (spatialreference.cpp) in libLAS 1.8.1 that will cause a denial of service.

Record: GHSA-fh22-7fx9-qh2m
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-20
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-20539 6.5

There is a Segmentation fault triggered by illegal address access at liblas::SpatialReference::GetGTIF() (spatialreference.cpp) in libLAS 1.8.1 that will cause a denial of service.

Record: UBUNTU-CVE-2018-20539
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

liblas

Affected packages

Affected packages
Package	Affected	Fixed
`liblas` Ubuntu:16.04:LTS	All versions, plus listed versions 1.8.0-51.8.0-71.8.0-7build1	None known
`liblas` Ubuntu:18.04:LTS	All versions, plus listed versions 1.8.1-4build11.8.1-4build21.8.1-51.8.1-6build1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-20539 is a medium vulnerability (CVSS 6.5) in Liblas, published December 28, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.43%, the 73rd percentile. No source names a fixed version.

References

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