Unrated

DEBIAN-CVE-2026-8484

Type: advisorySource: OSV1 source record

A heap buffer overflow vulnerability exists in the Jansi JNI "ioctl()" wrapper due to a lack of size verification for the argument array before the system call. This can lead to heap corruption and application crashes (DoS). All versions are believed to be vulnerable. This project is unmaintained at the time of CVE assignment.

Announced 16 Jun 2026Group revision 1

Original source ↗

DEBIAN-CVE-2026-8484

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-8484

jansi

Source reference: /affected/0/package/name

Affected versions: 2.4.0-2
Source reference: /affected/0/versions
2.4.0-3
Source reference: /affected/0/versions
2.4.1-1
Source reference: /affected/0/versions
2.4.1-2
Source reference: /affected/0/versions
2.4.2-1
Source reference: /affected/0/versions
2.4.3-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jansi

Source reference: /affected/1/package/name

Affected versions: 2.4.1-2
Source reference: /affected/1/versions
2.4.2-1
Source reference: /affected/1/versions
2.4.3-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jansi

Source reference: /affected/2/package/name

Affected versions: 2.4.1-2
Source reference: /affected/2/versions
2.4.2-1
Source reference: /affected/2/versions
2.4.3-1
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jansi-native

Source reference: /affected/3/package/name

Affected versions: 1.8-1
Source reference: /affected/3/versions
1.8-2
Source reference: /affected/3/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jansi-native

Source reference: /affected/4/package/name

Affected versions: 1.8-2
Source reference: /affected/4/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

jansi-native

Source reference: /affected/5/package/name

Affected versions: 1.8-2
Source reference: /affected/5/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jansi",
      "purl": "pkg:deb/debian/jansi?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "2.4.0-2",
      "2.4.0-3",
      "2.4.1-1",
      "2.4.1-2",
      "2.4.2-1",
      "2.4.3-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8484.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jansi",
      "purl": "pkg:deb/debian/jansi?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "2.4.1-2",
      "2.4.2-1",
      "2.4.3-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8484.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jansi",
      "purl": "pkg:deb/debian/jansi?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2.4.1-2",
      "2.4.2-1",
      "2.4.3-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8484.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jansi-native",
      "purl": "pkg:deb/debian/jansi-native?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1.8-1",
      "1.8-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8484.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jansi-native",
      "purl": "pkg:deb/debian/jansi-native?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1.8-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8484.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "jansi-native",
      "purl": "pkg:deb/debian/jansi-native?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1.8-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8484.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #58411 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:59:23 GMT
Publisher date: Tue, 16 Jun 2026 12:16:26 GMT

Read the original announcement

Revision history

25 Oct 2026DEBIAN-CVE-2026-8484 · Revision 1Source updated