Vulnerability-Lookup

OPENSUSE-SU-2026:20476-1

Vulnerability from csaf_opensuse - Published: 2026-04-07 15:33 - Updated: 2026-10-14 16:43

Summary

Security update for mapserver

Severity

Moderate

Notes

Title of the patch: Security update for mapserver

Description of the patch: This update for mapserver fixes the following issues: Changes in mapserver: - Update to release 8.6.1 * msSLDParseRasterSymbolizer: fix potential heap buffer overflow [boo#1260869] [CVE-2026-33721] * GetFeatureInfo with IDENTIFY CLASSAUTO: take into account SYMBOL.ANCHORPOINT * WCS 2.0: fix issue when input raster in a rotated pole lon/lat CRS with lon_0> 180 * UVRaster: fix WMS-Time support on layers with TILEINDEX pointing to a shapefile * WMS GetCapabilities response: use group title and abstract when using wms_layer_group instead of GROUP - Update to release 8.6.0 * Add `CONNECTIONTYPE RASTERLABEL` * Set `MS_LEGEND_KEYSIZE_MAX` to 1000 * Add 4 new `COMPOSITE.COMPOP` blending operations * Allow encryption key files to use paths relative to a mapfile * Allow `use_default_extent_for_getfeature` to be used for OGC Features API and PostGIS * Allow append of additional query parameters for OGCAPI * New MapServer index page * WMS `GetFeatureInfo`: add options to precisely identify points through their symbols * Add `FALLBACK` parameter for the `CLASS` object, to be applied if none of the previously defined classes has been applied

Patchnames: openSUSE-Leap-16.0-packagehub-190

CVE-2026-33721

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 21 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 16.0:libjavamapscript-0:8.6.1-bp160.1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libjavamapscript-0:8.6.1-bp160.1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libjavamapscript-0:8.6.1-bp160.1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libmapserver2-0:8.6.1-bp160.1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libmapserver2-0:8.6.1-bp160.1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:libmapserver2-0:8.6.1-bp160.1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:mapserver-0:8.6.1-bp160.1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:mapserver-0:8.6.1-bp160.1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:mapserver-0:8.6.1-bp160.1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:mapserver-devel-0:8.6.1-bp160.1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:mapserver-devel-0:8.6.1-bp160.1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:mapserver-devel-0:8.6.1-bp160.1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:perl-mapscript-0:8.6.1-bp160.1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:perl-mapscript-0:8.6.1-bp160.1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:perl-mapscript-0:8.6.1-bp160.1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:php-mapscriptng-0:8.6.1-bp160.1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:php-mapscriptng-0:8.6.1-bp160.1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:php-mapscriptng-0:8.6.1-bp160.1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:python313-mapserver-0:8.6.1-bp160.1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:python313-mapserver-0:8.6.1-bp160.1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 16.0:python313-mapserver-0:8.6.1-bp160.1.1.x86_64	—	Vendor Fix

Threats

Impact important

References

6 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://bugzilla.suse.com/1260869	self
https://www.suse.com/security/cve/CVE-2026-33721/	self
https://www.suse.com/security/cve/CVE-2026-33721	external
https://bugzilla.suse.com/1260869	external

JSON

To clipboard

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        "text": "This update for mapserver fixes the following issues:\n\nChanges in mapserver:\n\n- Update to release 8.6.1\n  * msSLDParseRasterSymbolizer: fix potential heap buffer overflow\n    [boo#1260869] [CVE-2026-33721]\n  * GetFeatureInfo with IDENTIFY CLASSAUTO: take into account\n    SYMBOL.ANCHORPOINT\n  * WCS 2.0: fix issue when input raster in a rotated pole lon/lat\n    CRS with lon_0\u003e 180\n  * UVRaster: fix WMS-Time support on layers with TILEINDEX\n    pointing to a shapefile\n  * WMS GetCapabilities response: use group title and abstract when\n    using wms_layer_group instead of GROUP\n\n- Update to release 8.6.0\n  * Add `CONNECTIONTYPE RASTERLABEL`\n  * Set `MS_LEGEND_KEYSIZE_MAX` to 1000\n  * Add 4 new `COMPOSITE.COMPOP` blending operations\n  * Allow encryption key files to use paths relative to a mapfile\n  * Allow `use_default_extent_for_getfeature` to be used for OGC\n    Features API and PostGIS\n  * Allow append of additional query parameters for OGCAPI\n  * New MapServer index page\n  * WMS `GetFeatureInfo`: add options to precisely identify points\n    through their symbols\n  * Add `FALLBACK` parameter for the `CLASS` object, to be applied\n    if none of the previously defined classes has been applied\n",
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CVE-2026-33721 (GCVE-0-2026-33721)

Vulnerability from cvelistv5 – Published: 2026-03-27 00:15 – Updated: 2026-04-17 17:18

Title

MapServer has heap buffer overflow in SLD `Categorize` Threshold parsing

Summary

MapServer is a system for developing web-based GIS applications. Starting in version 4.2 and prior to version 8.6.1, a heap-buffer-overflow write in MapServer’s SLD (Styled Layer Descriptor) parser lets a remote, unauthenticated attacker crash the MapServer process by sending a crafted SLD with more than 100 Threshold elements inside a ColorMap/Categorize structure (commonly reachable via WMS GetMap with SLD_BODY). Version 8.6.1 patches the issue.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-30 11:51 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7637 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/MapServer/MapServer/security/a…	x_refsource_CONFIRM
https://github.com/MapServer/MapServer/releases/t…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2026…

Impacted products

1 product

Vendor	Product	Version
MapServer	MapServer	Affected: >= 4.2, < 8.6.1

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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