CVE-2018-20539
CVE-2018-20539 is a medium-severity vulnerability in Liblas with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (70th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Liblas
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2018-20539?
- 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.
- How severe is CVE-2018-20539?
- CVE-2018-20539 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2018-20539 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-20539?
- CVE-2018-20539 affects Liblas. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-20539?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-20539 published?
- CVE-2018-20539 was published on 2018-12-28 and last updated on 2026-06-17.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1652609
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3TPVZSUWM5TEAMCBL3Y7QLGQSLCCJFIT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YFI3F3PRKPXOITWD47LF6ON4L5MJQQYM/
Affected products (1)
- cpe:2.3:a:liblas:liblas:1.8.1:*:*:*:*:*:*:*
More vulnerabilities in Liblas
- CVE-2024-27507 — High (CVSS 7.5): libLAS 1.8.1 contains a memory leak vulnerability in /libLAS/apps/ts2las.cpp.
- CVE-2018-20540 — Medium (CVSS 6.5): There is memory leak at liblas::Open (liblas/liblas.hpp) in libLAS 1.8.1.
- CVE-2018-20537 — Medium (CVSS 6.5): There is a NULL pointer dereference at liblas::SpatialReference::GetGTIF() (spatialreference.cpp) in libLAS 1.8.1 that…
- CVE-2018-20536 — Medium (CVSS 6.5): There is a heap-based buffer over-read at liblas::SpatialReference::GetGTIF() (spatialreference.cpp) in libLAS 1.8.1…
Other CWE-20 (Improper Input Validation) vulnerabilities
- CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
- CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
- CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…
Browse all CWE-20 (Improper Input Validation) vulnerabilities →