ubuntu-cve-2026-3949
Vulnerability from osv_ubuntu
Published
2026-03-11 19:16
Modified
2026-03-19 05:25
Summary
Details

A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdec_push_data2 of the file libheif/plugins/decoder_vvdec.cc of the component HEIF File Parser. Executing a manipulation of the argument size can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called b97c8b5f198b27f375127cd597a35f2113544d03. It is advisable to implement a patch to correct this issue.

Severity
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
1.9 (Low)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libheif-dev",
            "binary_version": "1.1.0-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libheif-examples",
            "binary_version": "1.1.0-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libheif1",
            "binary_version": "1.1.0-2ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libheif",
        "purl": "pkg:deb/ubuntu/libheif@1.1.0-2ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.0-2",
        "1.1.0-2ubuntu0.1~esm1",
        "1.1.0-2ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "libheif-dev",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "libheif-examples",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "libheif1",
            "binary_version": "1.6.1-1ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libheif",
        "purl": "pkg:deb/ubuntu/libheif@1.6.1-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.0-1build1",
        "1.5.1-1",
        "1.5.1-1build1",
        "1.6.0-1",
        "1.6.1-1",
        "1.6.1-1build1",
        "1.6.1-1ubuntu0.1~esm1",
        "1.6.1-1ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libheif-dev",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libheif-examples",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libheif1",
            "binary_version": "1.12.0-2ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "libheif",
        "purl": "pkg:deb/ubuntu/libheif@1.12.0-2ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11.0-1",
        "1.12.0-2build1",
        "1.12.0-2ubuntu0.1~esm1",
        "1.12.0-2ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-dev",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-examples",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-aomdec",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-aomenc",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-dav1d",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-ffmpegdec",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-j2kdec",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-j2kenc",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-jpegdec",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-jpegenc",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-libde265",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-rav1e",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-svtenc",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif-plugin-x265",
            "binary_version": "1.17.6-1ubuntu4.2"
          },
          {
            "binary_name": "libheif1",
            "binary_version": "1.17.6-1ubuntu4.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libheif",
        "purl": "pkg:deb/ubuntu/libheif@1.17.6-1ubuntu4.2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.16.2-2ubuntu1",
        "1.17.1-1ubuntu2",
        "1.17.1-1ubuntu3",
        "1.17.4-1ubuntu1",
        "1.17.6-1ubuntu1",
        "1.17.6-1ubuntu2",
        "1.17.6-1ubuntu3",
        "1.17.6-1ubuntu4",
        "1.17.6-1ubuntu4.1",
        "1.17.6-1ubuntu4.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "heif-gdk-pixbuf",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "heif-thumbnailer",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "heif-view",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-dev",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-examples",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-aomdec",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-aomenc",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-dav1d",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-ffmpegdec",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-j2kdec",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-j2kenc",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-jpegdec",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-jpegenc",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-kvazaar",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-libde265",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-rav1e",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-svtenc",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugin-x265",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif-plugins-all",
            "binary_version": "1.20.2-1ubuntu0.1"
          },
          {
            "binary_name": "libheif1",
            "binary_version": "1.20.2-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libheif",
        "purl": "pkg:deb/ubuntu/libheif@1.20.2-1ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.19.7-1",
        "1.19.8-1",
        "1.20.2-1",
        "1.20.2-1ubuntu0.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdec_push_data2 of the file libheif/plugins/decoder_vvdec.cc of the component HEIF File Parser. Executing a manipulation of the argument size can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called b97c8b5f198b27f375127cd597a35f2113544d03. It is advisable to implement a patch to correct this issue.",
  "id": "UBUNTU-CVE-2026-3949",
  "modified": "2026-03-19T05:25:34Z",
  "published": "2026-03-11T19:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-3949"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-3949"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-3949"
  ],
  "withdrawn": "2026-04-02T17:29:38Z"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.