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UBUNTU-CVE-2026-56374

Type: advisorySource: OSV1 source record

ImageMagick before 7.1.2-19 contains a heap buffer overflow vulnerability in the FTXT encoder due to missing boundary checks when parsing ftxt:format. Remote attackers can trigger an out of bounds read by crafting malicious FTXT image files to cause denial of service or information disclosure.

Announced Source revision 1
Original source ↗

UBUNTU-CVE-2026-56374

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:UBUNTU-CVE-2026-56374

imagemagick

Source reference: /affected/0/package/name

Affected versions
8:7.1.1.43+dfsg1-1

Source reference: /affected/0/versions

8:7.1.1.43+dfsg1-1ubuntu1

Source reference: /affected/0/versions

8:7.1.1.43+dfsg1-1ubuntu2

Source reference: /affected/0/versions

8:7.1.2.3+dfsg1-1

Source reference: /affected/0/versions

8:7.1.2.3+dfsg1-1ubuntu0.1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

imagemagick

Source reference: /affected/1/package/name

Affected versions
8:7.1.2.3+dfsg1-1

Source reference: /affected/1/versions

8:7.1.2.8+dfsg1-1

Source reference: /affected/1/versions

8:7.1.2.12+dfsg1-1

Source reference: /affected/1/versions

8:7.1.2.13+dfsg1-1

Source reference: /affected/1/versions

8:7.1.2.15+dfsg1-1

Source reference: /affected/1/versions

8:7.1.2.16+dfsg1-1

Source reference: /affected/1/versions

8:7.1.2.18+dfsg1-1

Source reference: /affected/1/versions

8:7.1.2.18+dfsg1-1ubuntu0.1~esm1

Source reference: /affected/1/versions

8:7.1.2.18+dfsg1-1ubuntu0.1~esm2

Source reference: /affected/1/versions

8:7.1.2.18+dfsg1-1ubuntu0.1~esm3

Source reference: /affected/1/versions

8:7.1.2.18+dfsg1-1ubuntu0.1~esm4

Source reference: /affected/1/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": "imagemagick",
      "purl": "pkg:deb/ubuntu/imagemagick?arch=source&distro=questing",
      "ecosystem": "Ubuntu:25.10"
    },
    "versions": [
      "8:7.1.1.43+dfsg1-1",
      "8:7.1.1.43+dfsg1-1ubuntu1",
      "8:7.1.1.43+dfsg1-1ubuntu2",
      "8:7.1.2.3+dfsg1-1",
      "8:7.1.2.3+dfsg1-1ubuntu0.1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56374.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "imagemagick",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "imagemagick-7-common",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "imagemagick-7.q16",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "imagemagick-7.q16hdri",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libimage-magick-perl",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libimage-magick-q16-perl",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libimage-magick-q16hdri-perl",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagick++-7-headers",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagick++-7.q16-5",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagick++-7.q16hdri-5",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickcore-7-arch-config",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickcore-7-headers",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickcore-7.q16-10",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickcore-7.q16-10-extra",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickcore-7.q16hdri-10",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickcore-7.q16hdri-10-extra",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickwand-7-headers",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickwand-7.q16-10",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "libmagickwand-7.q16hdri-10",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        },
        {
          "binary_name": "perlmagick",
          "binary_version": "8:7.1.2.3+dfsg1-1ubuntu0.1"
        }
      ]
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "imagemagick",
      "purl": "pkg:deb/ubuntu/imagemagick?arch=source&distro=esm-apps%2Fresolute",
      "ecosystem": "Ubuntu:Pro:26.04:LTS"
    },
    "versions": [
      "8:7.1.2.3+dfsg1-1",
      "8:7.1.2.8+dfsg1-1",
      "8:7.1.2.12+dfsg1-1",
      "8:7.1.2.13+dfsg1-1",
      "8:7.1.2.15+dfsg1-1",
      "8:7.1.2.16+dfsg1-1",
      "8:7.1.2.18+dfsg1-1",
      "8:7.1.2.18+dfsg1-1ubuntu0.1~esm1",
      "8:7.1.2.18+dfsg1-1ubuntu0.1~esm2",
      "8:7.1.2.18+dfsg1-1ubuntu0.1~esm3",
      "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-56374.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "imagemagick",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "imagemagick-7-common",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "imagemagick-7.q16",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "imagemagick-7.q16hdri",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libimage-magick-perl",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libimage-magick-q16-perl",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libimage-magick-q16hdri-perl",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagick++-7-headers",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagick++-7.q16-5",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagick++-7.q16hdri-5",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickcore-7-arch-config",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickcore-7-headers",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickcore-7.q16-10",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickcore-7.q16-10-extra",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickcore-7.q16hdri-10",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickcore-7.q16hdri-10-extra",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickwand-7-headers",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickwand-7.q16-10",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "libmagickwand-7.q16hdri-10",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        },
        {
          "binary_name": "perlmagick",
          "binary_version": "8:7.1.2.18+dfsg1-1ubuntu0.1~esm4"
        }
      ]
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#51953 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement