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DEBIAN-CVE-2026-12706

Type: advisorySource: OSV1 source record

A use-after-free vulnerability was found in FFmpeg's RASC video decoder. The decode_move() function initializes a read pointer into a decompressed buffer, but a subsequent reallocation of that same buffer during move-table processing leaves the pointer dangling. An attacker could exploit this by providing a specially crafted AVI file containing a malicious RASC video stream. When a user opens or plays the file, the decoder reads from freed heap memory, which could lead to a denial of service (crash).

Announced Group revision 1
Original source ↗

DEBIAN-CVE-2026-12706

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-2026-12706

ffmpeg

Source reference: /affected/0/package/name

Affected versions
7:5.1.3-1

Source reference: /affected/0/versions

7:5.1.3-2

Source reference: /affected/0/versions

7:5.1.4-0+deb12u1

Source reference: /affected/0/versions

7:5.1.5-0+deb12u1

Source reference: /affected/0/versions

7:5.1.6-0+deb12u1

Source reference: /affected/0/versions

7:5.1.7-0+deb12u1

Source reference: /affected/0/versions

7:5.1.8-0+deb12u1

Source reference: /affected/0/versions

Fixed versions
7:5.1.9-0+deb12u1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

ffmpeg

Source reference: /affected/1/package/name

Affected versions
7:7.1.1-1

Source reference: /affected/1/versions

7:7.1.2-0+deb13u1

Source reference: /affected/1/versions

7:7.1.2-1

Source reference: /affected/1/versions

7:7.1.3-0+deb13u1

Source reference: /affected/1/versions

7:7.1.3-1

Source reference: /affected/1/versions

Fixed versions
7:7.1.4-0+deb13u1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

ffmpeg

Source reference: /affected/2/package/name

Affected versions
7:7.1.1-1

Source reference: /affected/2/versions

7:7.1.2-1

Source reference: /affected/2/versions

7:7.1.3-1

Source reference: /affected/2/versions

7:8.0-1

Source reference: /affected/2/versions

7:8.0-2

Source reference: /affected/2/versions

7:8.0.1-1

Source reference: /affected/2/versions

7:8.0.1-2

Source reference: /affected/2/versions

7:8.0.1-3

Source reference: /affected/2/versions

7:8.1-1

Source reference: /affected/2/versions

7:8.1-2

Source reference: /affected/2/versions

7:8.1-3

Source reference: /affected/2/versions

Fixed versions
7:8.1.1-1

Source reference: /affected/2/ranges

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"
          },
          {
            "fixed": "7:5.1.9-0+deb12u1"
          }
        ]
      }
    ],
    "package": {
      "name": "ffmpeg",
      "purl": "pkg:deb/debian/ffmpeg?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "7:5.1.3-1",
      "7:5.1.3-2",
      "7:5.1.4-0+deb12u1",
      "7:5.1.5-0+deb12u1",
      "7:5.1.6-0+deb12u1",
      "7:5.1.7-0+deb12u1",
      "7:5.1.8-0+deb12u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12706.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:7.1.4-0+deb13u1"
          }
        ]
      }
    ],
    "package": {
      "name": "ffmpeg",
      "purl": "pkg:deb/debian/ffmpeg?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "7:7.1.1-1",
      "7:7.1.2-0+deb13u1",
      "7:7.1.2-1",
      "7:7.1.3-0+deb13u1",
      "7:7.1.3-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12706.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7:8.1.1-1"
          }
        ]
      }
    ],
    "package": {
      "name": "ffmpeg",
      "purl": "pkg:deb/debian/ffmpeg?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "7:7.1.1-1",
      "7:7.1.2-1",
      "7:7.1.3-1",
      "7:8.0-1",
      "7:8.0-2",
      "7:8.0.1-1",
      "7:8.0.1-2",
      "7:8.0.1-3",
      "7:8.1-1",
      "7:8.1-2",
      "7:8.1-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12706.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#55468 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. DEBIAN-CVE-2026-12706 · Revision 1Source updated