Skip to content
Heist/ feed
UnratedFix available

DEBIAN-CVE-2026-54240

Type: advisorySource: OSV1 source record

libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate pixel offsets, allowing a crafted HEVC stream with large image dimensions to trigger an integer overflow and cause out-of-bounds heap reads or writes, potentially disclosing data, corrupting memory, or crashing the decoder. Version 1.1.1 contains a patch.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-54240

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-2026-54240

libde265

Source reference: /affected/0/package/name

Affected versions
1.0.11-1

Source reference: /affected/0/versions

1.0.11-1+deb12u1

Source reference: /affected/0/versions

1.0.11-1+deb12u2

Source reference: /affected/0/versions

Fixed versions
1.0.11-1+deb12u3

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

libde265

Source reference: /affected/1/package/name

Affected versions
1.0.15-1

Source reference: /affected/1/versions

Fixed versions
1.0.15-1+deb13u1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

libde265

Source reference: /affected/2/package/name

Affected versions
1.0.15-1

Source reference: /affected/2/versions

1.0.16-1

Source reference: /affected/2/versions

1.0.18-1

Source reference: /affected/2/versions

Fixed versions
1.1.1-1

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": "1.0.11-1+deb12u3"
          }
        ]
      }
    ],
    "package": {
      "name": "libde265",
      "purl": "pkg:deb/debian/libde265?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1.0.11-1",
      "1.0.11-1+deb12u1",
      "1.0.11-1+deb12u2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54240.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.0.15-1+deb13u1"
          }
        ]
      }
    ],
    "package": {
      "name": "libde265",
      "purl": "pkg:deb/debian/libde265?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1.0.15-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54240.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.1.1-1"
          }
        ]
      }
    ],
    "package": {
      "name": "libde265",
      "purl": "pkg:deb/debian/libde265?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1.0.15-1",
      "1.0.16-1",
      "1.0.18-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54240.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#59437 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement