USN-4763-1 (UBUNTU-CVE-2021-25289)

Vulnerability from osv_ubuntu – Published: 2021-03-11 14:56 – Updated: 2026-04-27 14:11 – Source website
VLAI
Summary
pillow vulnerabilities
Details

It was discovered that Pillow incorrectly handled certain Tiff image files. If a user or automated system were tricked into opening a specially-crafted Tiff file, a remote attacker could cause Pillow to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-25289, CVE-2021-25291)

It was discovered that Pillow incorrectly handled certain Tiff image files. If a user or automated system were tricked into opening a specially-crafted Tiff file, a remote attacker could cause Pillow to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-25290)

It was discovered that Pillow incorrectly handled certain PDF files. If a user or automated system were tricked into opening a specially-crafted PDF file, a remote attacker could cause Pillow to hang, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2021-25292)

It was discovered that Pillow incorrectly handled certain SGI image files. If a user or automated system were tricked into opening a specially-crafted SGI file, a remote attacker could possibly cause Pillow to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2021-25293)

Jiayi Lin, Luke Shaffer, Xinran Xie, and Akshay Ajayan discovered that Pillow incorrectly handled certain BLP files. If a user or automated system were tricked into opening a specially-crafted BLP file, a remote attacker could possibly cause Pillow to consume resources, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2021-27921)

Jiayi Lin, Luke Shaffer, Xinran Xie, and Akshay Ajayan discovered that Pillow incorrectly handled certain ICNS files. If a user or automated system were tricked into opening a specially-crafted ICNS file, a remote attacker could possibly cause Pillow to consume resources, resulting in a denial of service. (CVE-2021-27922)

Jiayi Lin, Luke Shaffer, Xinran Xie, and Akshay Ajayan discovered that Pillow incorrectly handled certain ICO files. If a user or automated system were tricked into opening a specially-crafted ICO file, a remote attacker could possibly cause Pillow to consume resources, resulting in a denial of service. (CVE-2021-27922)

References
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{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-25290",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-27922",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-27923",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-imaging",
            "binary_version": "3.1.2-0ubuntu1.6"
          },
          {
            "binary_name": "python-pil",
            "binary_version": "3.1.2-0ubuntu1.6"
          },
          {
            "binary_name": "python-pil.imagetk",
            "binary_version": "3.1.2-0ubuntu1.6"
          },
          {
            "binary_name": "python3-pil",
            "binary_version": "3.1.2-0ubuntu1.6"
          },
          {
            "binary_name": "python3-pil.imagetk",
            "binary_version": "3.1.2-0ubuntu1.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "pillow",
        "purl": "pkg:deb/ubuntu/pillow@3.1.2-0ubuntu1.6?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.2-0ubuntu1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.9.0-1",
        "3.0.0-1",
        "3.0.0-1build1",
        "3.1.0-1",
        "3.1.1-1",
        "3.1.2-0ubuntu1",
        "3.1.2-0ubuntu1.1",
        "3.1.2-0ubuntu1.3",
        "3.1.2-0ubuntu1.4",
        "3.1.2-0ubuntu1.5"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-25290",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-25292",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-25293",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-27921",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-27922",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-27923",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-pil",
            "binary_version": "5.1.0-1ubuntu0.5"
          },
          {
            "binary_name": "python-pil.imagetk",
            "binary_version": "5.1.0-1ubuntu0.5"
          },
          {
            "binary_name": "python3-pil",
            "binary_version": "5.1.0-1ubuntu0.5"
          },
          {
            "binary_name": "python3-pil.imagetk",
            "binary_version": "5.1.0-1ubuntu0.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "pillow",
        "purl": "pkg:deb/ubuntu/pillow@5.1.0-1ubuntu0.5?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1.0-1ubuntu0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.1.1-3build2",
        "4.3.0-2ubuntu1",
        "5.0.0-1",
        "5.1.0-1",
        "5.1.0-1ubuntu0.2",
        "5.1.0-1ubuntu0.3",
        "5.1.0-1ubuntu0.4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-25289",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-25290",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-25291",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-25292",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-25293",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-27921",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-27922",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-27923",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-pil",
            "binary_version": "7.0.0-4ubuntu0.3"
          },
          {
            "binary_name": "python3-pil.imagetk",
            "binary_version": "7.0.0-4ubuntu0.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "pillow",
        "purl": "pkg:deb/ubuntu/pillow@7.0.0-4ubuntu0.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.0-4ubuntu0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.1.0-1",
        "6.1.0-1build1",
        "6.2.1-2",
        "7.0.0-4",
        "7.0.0-4build1",
        "7.0.0-4ubuntu0.1",
        "7.0.0-4ubuntu0.2"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Pillow incorrectly handled certain Tiff image files.\nIf a user or automated system were tricked into opening a specially-crafted\nTiff file, a remote attacker could cause Pillow to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. This issue only\naffected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-25289,\nCVE-2021-25291)\n\nIt was discovered that Pillow incorrectly handled certain Tiff image files.\nIf a user or automated system were tricked into opening a specially-crafted\nTiff file, a remote attacker could cause Pillow to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. (CVE-2021-25290)\n\nIt was discovered that Pillow incorrectly handled certain PDF files. If a\nuser or automated system were tricked into opening a specially-crafted\nPDF file, a remote attacker could cause Pillow to hang, resulting in a\ndenial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04\nLTS, and Ubuntu 20.10. (CVE-2021-25292)\n\nIt was discovered that Pillow incorrectly handled certain SGI image files.\nIf a user or automated system were tricked into opening a specially-crafted\nSGI file, a remote attacker could possibly cause Pillow to crash,\nresulting in a denial of service. This issue only affected Ubuntu 18.04\nLTS, Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2021-25293)\n\nJiayi Lin, Luke Shaffer, Xinran Xie, and Akshay Ajayan discovered that\nPillow incorrectly handled certain BLP files. If a user or automated system\nwere tricked into opening a specially-crafted BLP file, a remote attacker\ncould possibly cause Pillow to consume resources, resulting in a denial of\nservice. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and\nUbuntu 20.10. (CVE-2021-27921)\n\nJiayi Lin, Luke Shaffer, Xinran Xie, and Akshay Ajayan discovered that\nPillow incorrectly handled certain ICNS files. If a user or automated\nsystem were tricked into opening a specially-crafted ICNS file, a remote\nattacker could possibly cause Pillow to consume resources, resulting in a\ndenial of service. (CVE-2021-27922)\n\nJiayi Lin, Luke Shaffer, Xinran Xie, and Akshay Ajayan discovered that\nPillow incorrectly handled certain ICO files. If a user or automated\nsystem were tricked into opening a specially-crafted ICO file, a remote\nattacker could possibly cause Pillow to consume resources, resulting in a\ndenial of service. (CVE-2021-27922)\n",
  "id": "USN-4763-1",
  "modified": "2026-04-27T14:11:26Z",
  "published": "2021-03-11T14:56:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4763-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-25289"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-25290"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-25291"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-25292"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-25293"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-27921"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-27922"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-27923"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "pillow vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-25289",
    "UBUNTU-CVE-2021-25290",
    "UBUNTU-CVE-2021-25291",
    "UBUNTU-CVE-2021-25292",
    "UBUNTU-CVE-2021-25293",
    "UBUNTU-CVE-2021-27921",
    "UBUNTU-CVE-2021-27922",
    "UBUNTU-CVE-2021-27923"
  ]
}



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