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With package: minetest-mapserver

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Permalink CVE-2026-33721
5.3 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): Low (L)
updated 2 months, 3 weeks ago by @mweinelt Activity log
  • Created suggestion 2 months, 3 weeks ago
  • @mweinelt ignored package mapserver 2 months, 3 weeks ago
  • @mweinelt accepted 2 months, 3 weeks ago
  • @mweinelt published on GitHub 2 months, 3 weeks ago
MapServer has heap buffer overflow in SLD `Categorize` Threshold parsing

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.

Affected products

MapServer
  • ==>= 4.2, < 8.6.1

Matching in nixpkgs

Ignored packages (1)

pkgs.mapserver

Platform for publishing spatial data and interactive mapping applications to the web

https://github.com/MapServer/MapServer/security/advisories/GHSA-cv4m-mr84-fgjp