GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

USN-5227-1 (UBUNTU-CVE-2021-23437)

Vulnerability from osv_ubuntu – Published: 2022-01-13 13:26 – Updated: 2026-04-27 14:11 – Source website
VLAI
Summary
pillow vulnerabilities
Details

It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to hang, resulting in a denial of service. (CVE-2021-23437)

It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to crash, resulting in a denial of service. This issue ony affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 21.04. (CVE-2021-34552)

It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2022-22815)

It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to crash, resulting in a denial of service. (CVE-2022-22816)

It was discovered that Pillow incorrectly handled certain image files. If a user or automated system were tricked into opening a specially-crafted file, a remote attacker could cause Pillow to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2022-22817)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-23437",
              "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": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-34552",
              "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": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-22815",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-22816",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-pil",
            "binary_version": "5.1.0-1ubuntu0.7"
          },
          {
            "binary_name": "python-pil.imagetk",
            "binary_version": "5.1.0-1ubuntu0.7"
          },
          {
            "binary_name": "python3-pil",
            "binary_version": "5.1.0-1ubuntu0.7"
          },
          {
            "binary_name": "python3-pil.imagetk",
            "binary_version": "5.1.0-1ubuntu0.7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "pillow",
        "purl": "pkg:deb/ubuntu/pillow@5.1.0-1ubuntu0.7?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1.0-1ubuntu0.7"
            }
          ],
          "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",
        "5.1.0-1ubuntu0.5",
        "5.1.0-1ubuntu0.6"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-23437",
              "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": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-34552",
              "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": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-22815",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-22816",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-pil",
            "binary_version": "7.0.0-4ubuntu0.5"
          },
          {
            "binary_name": "python3-pil.imagetk",
            "binary_version": "7.0.0-4ubuntu0.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "pillow",
        "purl": "pkg:deb/ubuntu/pillow@7.0.0-4ubuntu0.5?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.0-4ubuntu0.5"
            }
          ],
          "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",
        "7.0.0-4ubuntu0.3",
        "7.0.0-4ubuntu0.4"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Pillow incorrectly handled certain image files. If a\nuser or automated system were tricked into opening a specially-crafted\nfile, a remote attacker could cause Pillow to hang, resulting in a denial\nof service. (CVE-2021-23437)\n\nIt was discovered that Pillow incorrectly handled certain image files. If a\nuser or automated system were tricked into opening a specially-crafted\nfile, a remote attacker could cause Pillow to crash, resulting in a denial\nof service. This issue ony affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and\nUbuntu 21.04. (CVE-2021-34552)\n\nIt was discovered that Pillow incorrectly handled certain image files. If a\nuser or automated system were tricked into opening a specially-crafted\nfile, a remote attacker could cause Pillow to crash, resulting in a denial\nof service, or possibly execute arbitrary code. (CVE-2022-22815)\n\nIt was discovered that Pillow incorrectly handled certain image files. If a\nuser or automated system were tricked into opening a specially-crafted\nfile, a remote attacker could cause Pillow to crash, resulting in a denial\nof service. (CVE-2022-22816)\n\nIt was discovered that Pillow incorrectly handled certain image files. If a\nuser or automated system were tricked into opening a specially-crafted\nfile, a remote attacker could cause Pillow to crash, resulting in a denial\nof service, or possibly execute arbitrary code. (CVE-2022-22817)\n",
  "id": "USN-5227-1",
  "modified": "2026-04-27T14:11:27Z",
  "published": "2022-01-13T13:26:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5227-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-23437"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-34552"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-22815"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-22816"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-22817"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "pillow vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-23437",
    "UBUNTU-CVE-2021-34552",
    "UBUNTU-CVE-2022-22815",
    "UBUNTU-CVE-2022-22816",
    "UBUNTU-CVE-2022-22817"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.