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mapcache, navit and 3 more products — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2021-30485

An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd(), while parsing a crafted XML file, performs incorrect memory handling, leading to a NULL pointer dereference while running strcmp() on a NULL pointer.

Products
mapcache, navit, netcdf, netcdf-parallel, scilab
Affected versions
0.5.0+dfsg.1-1build1, 0.5.0+dfsg.1-2, 0.5.0+dfsg.1-2build1, 0.5.0~svn5900+dfsg.1-1, 0.5.3+dfsg.1-2build1, 0.5.3+dfsg.1-2ubuntu1, 0.5.3+dfsg.1-2ubuntu3, 0.5.4+dfsg.1-1, 0.5.4+dfsg.1-2, 0.5.5+dfsg.1-2build1, 0.5.6+dfsg.1-1, 0.5.6+dfsg.1-2build1, 0.5.6+dfsg.1-2build3, 0.5.6+dfsg.1-2build4, 0.5.6+dfsg.1-4, 0.5.6+dfsg.1-4build1, 0.5.6+dfsg.1-5, 0.5.6+dfsg.1-5build2, 1.10.0-1, 1.10.0-2build1, 1.10.0-2build3, 1.12.0-1, 1.14.0-2, 1.14.0-2build1, 1.14.0-2build2, 1.14.0-4build1, 1.14.0-4build2, 1.14.1-1build1, 1.14.1-3, 1.14.1-3build1, 1.14.1-3build2, 1.16.0-1, 1.16.0-1build1, 1.4.0-3, 1.4.0-4, 1.6.0-2, 1.6.1-1, 1.8.0-1, 1.8.0-1build2, 1:4.6.2-1, 1:4.6.2-1build1, 1:4.7.3-1, 1:4.7.4-1, 1:4.7.4-1build1, 1:4.8.1-1, 1:4.8.1-2, 2024.0.0+dfsg-5, 2024.0.0+dfsg-5build2, 2024.0.0+dfsg-5build3, 2024.1.0+dfsg-6build5, 2024.1.0+dfsg-6ubuntu2, 2024.1.0+dfsg-6ubuntu3, 2024.1.0+dfsg-6ubuntu4, 2024.1.0+dfsg-7ubuntu1, 2024.1.0+dfsg-8, 2024.1.0+dfsg-8build2, 2024.1.0+dfsg-8build3, 2024.1.0+dfsg-8build4, 2024.1.0+dfsg-8build5, 2024.1.0+dfsg1-1, 2024.1.0+dfsg1-1ubuntu1, 2024.1.0+dfsg1-2, 2024.1.0+dfsg1-2build1, 2024.1.0+dfsg1-3, 2024.1.0+dfsg1-3build1, 5.5.2-1ubuntu1, 5.5.2-2ubuntu1, 5.5.2-2ubuntu2, 5.5.2-2ubuntu3, 5.5.2-4ubuntu2, 5.5.2-6, 6.0.0-1, 6.0.1-1ubuntu1, 6.0.1-7ubuntu1~18.04, 6.0.1-7ubuntu1~18.04.1, 6.0.1-7ubuntu1~18.04.2, 6.0.2-0ubuntu2, 6.0.2-0ubuntu3, 6.0.2-1fakesync5, 6.1.0+dfsg1-1ubuntu3, 6.1.0+dfsg1-1ubuntu3.1, 6.1.0+dfsg1-7, 6.1.1+dfsg2-10, 6.1.1+dfsg2-3ubuntu1, 6.1.1+dfsg2-9, 6.1.1+dfsg2-9build1
Fixed versions
5.5.2-2ubuntu3+esm1
CVEs
CVE-2021-30485
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 00:34 UTC · Revision 1

Source evidence

UBUNTU-CVE-2021-30485

core-osv · Original source

Published 11 Apr 2021, 16:15 UTC

An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd(), while parsing a crafted XML file, performs incorrect memory handling, leading to a NULL pointer dereference while running strcmp() on a NULL pointer.

osv:UBUNTU-CVE-2021-30485

scilab

Fixed versions: 5.5.2-2ubuntu3+esm1

mapcache

Fixed versions: Not specified

navit

Fixed versions: Not specified

mapcache

Fixed versions: Not specified

navit

Fixed versions: Not specified

scilab

Fixed versions: Not specified

mapcache

Fixed versions: Not specified

navit

Fixed versions: Not specified

netcdf

Fixed versions: Not specified

netcdf-parallel

Fixed versions: Not specified

scilab

Fixed versions: Not specified

mapcache

Fixed versions: Not specified

navit

Fixed versions: Not specified

netcdf

Fixed versions: Not specified

netcdf-parallel

Fixed versions: Not specified

scilab

Fixed versions: Not specified

mapcache

Fixed versions: Not specified

navit

Fixed versions: Not specified

scilab

Fixed versions: Not specified

mapcache

Fixed versions: Not specified

navit

Fixed versions: Not specified

scilab

Fixed versions: Not specified

mapcache

Fixed versions: Not specified

navit

Fixed versions: Not specified

scilab

Fixed versions: Not specified

mapcache

Fixed versions: Not specified

navit

Fixed versions: Not specified

scilab

Fixed versions: Not specified

Complete source record
{
  "id": "83af233b064f76fdf745f04162f5884f6a60edacc1f91ea68e38543070599dd9",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-30485",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2021-30485",
    "summary": "An issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxml_internal_dtd(), while parsing a crafted XML file, performs incorrect memory handling, leading to a NULL pointer dereference while running strcmp() on a NULL pointer.",
    "evidence": "osv:UBUNTU-CVE-2021-30485",
    "products": [
      {
        "name": {
          "value": "scilab",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.5.2-2ubuntu3+esm1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "5.5.2-1ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.5.2-2ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.5.2-2ubuntu2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "5.5.2-2ubuntu3",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "mapcache",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.4.0-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1.4.0-4",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "navit",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.5.0~svn5900+dfsg.1-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "0.5.0+dfsg.1-1build1",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "mapcache",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.6.0-2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1.6.1-1",
            "evidence": "/affected/3/versions"
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      },
      {
        "name": {
          "value": "navit",
          "evidence": "/affected/4/package/name"
        },
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        "affected_versions": [
          {
            "value": "0.5.0+dfsg.1-2",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "0.5.0+dfsg.1-2build1",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "scilab",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.5.2-4ubuntu2",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "5.5.2-6",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "6.0.0-1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "6.0.1-1ubuntu1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "6.0.1-7ubuntu1~18.04",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "6.0.1-7ubuntu1~18.04.1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "6.0.1-7ubuntu1~18.04.2",
            "evidence": "/affected/5/versions"
          }
        ]
      },
      {
        "name": {
          "value": "mapcache",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.8.0-1",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1.8.0-1build2",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1.10.0-1",
            "evidence": "/affected/6/versions"
          }
        ]
      },
      {
        "name": {
          "value": "navit",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.5.3+dfsg.1-2build1",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "0.5.3+dfsg.1-2ubuntu1",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "0.5.3+dfsg.1-2ubuntu3",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "0.5.4+dfsg.1-1",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "0.5.4+dfsg.1-2",
            "evidence": "/affected/7/versions"
          }
        ]
      },
      {
        "name": {
          "value": "netcdf",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:4.6.2-1build1",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:4.7.3-1",
            "evidence": "/affected/8/versions"
          }
        ]
      },
      {
        "name": {
          "value": "netcdf-parallel",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:4.6.2-1",
            "evidence": "/affected/9/versions"
          }
        ]
      },
      {
        "name": {
          "value": "scilab",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "6.0.2-0ubuntu2",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "6.0.2-0ubuntu3",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "6.0.2-1fakesync5",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "6.1.0+dfsg1-1ubuntu3",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "6.1.0+dfsg1-1ubuntu3.1",
            "evidence": "/affected/10/versions"
          }
        ]
      },
      {
        "name": {
          "value": "mapcache",
          "evidence": "/affected/11/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.10.0-2build1",
            "evidence": "/affected/11/versions"
          },
          {
            "value": "1.10.0-2build3",
            "evidence": "/affected/11/versions"
          },
          {
            "value": "1.12.0-1",
            "evidence": "/affected/11/versions"
          }
        ]
      },
      {
        "name": {
          "value": "navit",
          "evidence": "/affected/12/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.5.5+dfsg.1-2build1",
            "evidence": "/affected/12/versions"
          },
          {
            "value": "0.5.6+dfsg.1-1",
            "evidence": "/affected/12/versions"
          }
        ]
      },
      {
        "name": {
          "value": "netcdf",
          "evidence": "/affected/13/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:4.7.4-1build1",
            "evidence": "/affected/13/versions"
          },
          {
            "value": "1:4.8.1-1",
            "evidence": "/affected/13/versions"
          }
        ]
      },
      {
        "name": {
          "value": "netcdf-parallel",
          "evidence": "/affected/14/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:4.7.4-1",
            "evidence": "/affected/14/versions"
          },
          {
            "value": "1:4.8.1-2",
            "evidence": "/affected/14/versions"
          }
        ]
      },
      {
        "name": {
          "value": "scilab",
          "evidence": "/affected/15/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "6.1.0+dfsg1-7",
            "evidence": "/affected/15/versions"
          },
          {
            "value": "6.1.1+dfsg2-3ubuntu1",
            "evidence": "/affected/15/versions"
          }
        ]
      },
      {
        "name": {
          "value": "mapcache",
          "evidence": "/affected/16/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.14.0-2",
            "evidence": "/affected/16/versions"
          },
          {
            "value": "1.14.0-2build1",
            "evidence": "/affected/16/versions"
          },
          {
            "value": "1.14.0-2build2",
            "evidence": "/affected/16/versions"
          },
          {
            "value": "1.14.0-4build1",
            "evidence": "/affected/16/versions"
          },
          {
            "value": "1.14.0-4build2",
            "evidence": "/affected/16/versions"
          }
        ]
      },
      {
        "name": {
          "value": "navit",
          "evidence": "/affected/17/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.5.6+dfsg.1-2build1",
            "evidence": "/affected/17/versions"
          },
          {
            "value": "0.5.6+dfsg.1-2build3",
            "evidence": "/affected/17/versions"
          },
          {
            "value": "0.5.6+dfsg.1-2build4",
            "evidence": "/affected/17/versions"
          }
        ]
      },
      {
        "name": {
          "value": "scilab",
          "evidence": "/affected/18/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "6.1.1+dfsg2-9",
            "evidence": "/affected/18/versions"
          },
          {
            "value": "6.1.1+dfsg2-9build1",
            "evidence": "/affected/18/versions"
          },
          {
            "value": "6.1.1+dfsg2-10",
            "evidence": "/affected/18/versions"
          },
          {
            "value": "2024.0.0+dfsg-5",
            "evidence": "/affected/18/versions"
          },
          {
            "value": "2024.0.0+dfsg-5build2",
            "evidence": "/affected/18/versions"
          },
          {
            "value": "2024.0.0+dfsg-5build3",
            "evidence": "/affected/18/versions"
          }
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      },
      {
        "name": {
          "value": "mapcache",
          "evidence": "/affected/19/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.14.1-1build1",
            "evidence": "/affected/19/versions"
          },
          {
            "value": "1.14.1-3",
            "evidence": "/affected/19/versions"
          }
        ]
      },
      {
        "name": {
          "value": "navit",
          "evidence": "/affected/20/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.5.6+dfsg.1-4",
            "evidence": "/affected/20/versions"
          },
          {
            "value": "0.5.6+dfsg.1-4build1",
            "evidence": "/affected/20/versions"
          }
        ]
      },
      {
        "name": {
          "value": "scilab",
          "evidence": "/affected/21/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2024.1.0+dfsg-6build5",
            "evidence": "/affected/21/versions"
          },
          {
            "value": "2024.1.0+dfsg-6ubuntu2",
            "evidence": "/affected/21/versions"
          },
          {
            "value": "2024.1.0+dfsg-6ubuntu3",
            "evidence": "/affected/21/versions"
          },
          {
            "value": "2024.1.0+dfsg-6ubuntu4",
            "evidence": "/affected/21/versions"
          },
          {
            "value": "2024.1.0+dfsg-7ubuntu1",
            "evidence": "/affected/21/versions"
          }
        ]
      },
      {
        "name": {
          "value": "mapcache",
          "evidence": "/affected/22/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.14.1-3build2",
            "evidence": "/affected/22/versions"
          },
          {
            "value": "1.16.0-1",
            "evidence": "/affected/22/versions"
          },
          {
            "value": "1.16.0-1build1",
            "evidence": "/affected/22/versions"
          }
        ]
      },
      {
        "name": {
          "value": "navit",
          "evidence": "/affected/23/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.5.6+dfsg.1-5build2",
            "evidence": "/affected/23/versions"
          }
        ]
      },
      {
        "name": {
          "value": "scilab",
          "evidence": "/affected/24/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2024.1.0+dfsg1-2",
            "evidence": "/affected/24/versions"
          },
          {
            "value": "2024.1.0+dfsg1-2build1",
            "evidence": "/affected/24/versions"
          },
          {
            "value": "2024.1.0+dfsg1-3",
            "evidence": "/affected/24/versions"
          },
          {
            "value": "2024.1.0+dfsg1-3build1",
            "evidence": "/affected/24/versions"
          }
        ]
      },
      {
        "name": {
          "value": "mapcache",
          "evidence": "/affected/25/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.14.1-3",
            "evidence": "/affected/25/versions"
          },
          {
            "value": "1.14.1-3build1",
            "evidence": "/affected/25/versions"
          },
          {
            "value": "1.14.1-3build2",
            "evidence": "/affected/25/versions"
          }
        ]
      },
      {
        "name": {
          "value": "navit",
          "evidence": "/affected/26/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.5.6+dfsg.1-4build1",
            "evidence": "/affected/26/versions"
          },
          {
            "value": "0.5.6+dfsg.1-5",
            "evidence": "/affected/26/versions"
          },
          {
            "value": "0.5.6+dfsg.1-5build2",
            "evidence": "/affected/26/versions"
          }
        ]
      },
      {
        "name": {
          "value": "scilab",
          "evidence": "/affected/27/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "2024.1.0+dfsg-7ubuntu1",
            "evidence": "/affected/27/versions"
          },
          {
            "value": "2024.1.0+dfsg-8",
            "evidence": "/affected/27/versions"
          },
          {
            "value": "2024.1.0+dfsg-8build2",
            "evidence": "/affected/27/versions"
          },
          {
            "value": "2024.1.0+dfsg-8build3",
            "evidence": "/affected/27/versions"
          },
          {
            "value": "2024.1.0+dfsg-8build4",
            "evidence": "/affected/27/versions"
          },
          {
            "value": "2024.1.0+dfsg-8build5",
            "evidence": "/affected/27/versions"
          },
          {
            "value": "2024.1.0+dfsg1-1",
            "evidence": "/affected/27/versions"
          },
          {
            "value": "2024.1.0+dfsg1-1ubuntu1",
            "evidence": "/affected/27/versions"
          },
          {
            "value": "2024.1.0+dfsg1-2",
            "evidence": "/affected/27/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2021-30485",
      "aliases": [
        "UBUNTU-CVE-2021-30485"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        },
        {
          "type": "Ubuntu",
          "score": "low"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.5.2-2ubuntu3+esm1"
                }
              ]
            }
          ],
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      "modified": "2026-10-17T12:55:46.055832622Z",
      "provider": "osv",
      "upstream": [
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      "references": [
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        "https://ubuntu.com/security/notices/USN-5061-1",
        "https://www.cve.org/CVERecord?id=CVE-2021-30485"
      ]
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        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 354039,
  "published_at": "2021-04-11T16:15:00+00:00"
}