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ant — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-11979

As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.

Products
ant
Affected versions
Not specified
Fixed versions
1.10.9-1
CVEs
CVE-2020-11979
Confirmed fixed CVEs
Not specified
Updated in this feed
28 Oct 2026, 11:09 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-11979

core-osv · Original source

Published 1 Oct 2020, 20:15 UTC

As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.

osv:DEBIAN-CVE-2020-11979

ant

Fixed versions: 1.10.9-1

ant

Fixed versions: 1.10.9-1

ant

Fixed versions: 1.10.9-1

Complete source record
{
  "id": "b2f720795981a9576f6f9493a21df425ba5258a5f2d834b9ec1b6c3c77108bed",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-11979",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-11979",
    "summary": "As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.",
    "evidence": "osv:DEBIAN-CVE-2020-11979",
    "products": [
      {
        "name": {
          "value": "ant",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.10.9-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ant",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.10.9-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ant",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.10.9-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2020-11979",
      "aliases": [
        "DEBIAN-CVE-2020-11979"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.10.9-1"
                }
              ]
            }
          ],
          "package": {
            "name": "ant",
            "purl": "pkg:deb/debian/ant?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11979.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.10.9-1"
                }
              ]
            }
          ],
          "package": {
            "name": "ant",
            "purl": "pkg:deb/debian/ant?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11979.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.10.9-1"
                }
              ]
            }
          ],
          "package": {
            "name": "ant",
            "purl": "pkg:deb/debian/ant?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-11979.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-09T09:47:35.435612253Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-11979"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-11979"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-11979",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 111691,
  "published_at": "2020-10-01T20:15:13.033+00:00"
}