Vulnerability-Lookup

OESA-2022-1560 (CVE-2021-3781)

Vulnerability from osv_openeuler – Published: 2022-03-07 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

ghostscript security update

Details

Ghostscript is an interpreter for PostScript™ and Portable Document Format (PDF) files. Ghostscript consists of a PostScript interpreter layer, and a graphics library.

Security Fix(es):

A trivial sandbox (enabled with the -dSAFER option) escape flaw was found in the ghostscript interpreter by injecting a specially crafted pipe command. This flaw allows a specially crafted document to execute arbitrary commands on the system in the context of the ghostscript interpreter. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.(CVE-2021-3781)

Severity

9.9 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3781	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "ghostscript-9.52-6.oe1.aarch64.rpm",
          "ghostscript-debuginfo-9.52-6.oe1.aarch64.rpm",
          "ghostscript-debugsource-9.52-6.oe1.aarch64.rpm",
          "ghostscript-devel-9.52-6.oe1.aarch64.rpm",
          "ghostscript-tools-dvipdf-9.52-6.oe1.aarch64.rpm"
        ],
        "noarch": [
          "ghostscript-help-9.52-6.oe1.noarch.rpm"
        ],
        "src": [
          "ghostscript-9.52-6.oe1.src.rpm"
        ],
        "x86_64": [
          "ghostscript-devel-9.52-6.oe1.x86_64.rpm",
          "ghostscript-9.52-6.oe1.x86_64.rpm",
          "ghostscript-tools-dvipdf-9.52-6.oe1.x86_64.rpm",
          "ghostscript-debuginfo-9.52-6.oe1.x86_64.rpm",
          "ghostscript-debugsource-9.52-6.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "ghostscript",
        "purl": "pkg:rpm/openEuler/ghostscript\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.52-6.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "ghostscript-devel-9.52-7.oe1.aarch64.rpm",
          "ghostscript-debugsource-9.52-7.oe1.aarch64.rpm",
          "ghostscript-debuginfo-9.52-7.oe1.aarch64.rpm",
          "ghostscript-9.52-7.oe1.aarch64.rpm",
          "ghostscript-tools-dvipdf-9.52-7.oe1.aarch64.rpm"
        ],
        "noarch": [
          "ghostscript-help-9.52-7.oe1.noarch.rpm"
        ],
        "src": [
          "ghostscript-9.52-7.oe1.src.rpm"
        ],
        "x86_64": [
          "ghostscript-tools-dvipdf-9.52-7.oe1.x86_64.rpm",
          "ghostscript-9.52-7.oe1.x86_64.rpm",
          "ghostscript-devel-9.52-7.oe1.x86_64.rpm",
          "ghostscript-debuginfo-9.52-7.oe1.x86_64.rpm",
          "ghostscript-debugsource-9.52-7.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP2",
        "name": "ghostscript",
        "purl": "pkg:rpm/openEuler/ghostscript\u0026distro=openEuler-20.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.52-7.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "ghostscript-devel-9.52-7.oe1.aarch64.rpm",
          "ghostscript-debugsource-9.52-7.oe1.aarch64.rpm",
          "ghostscript-debuginfo-9.52-7.oe1.aarch64.rpm",
          "ghostscript-9.52-7.oe1.aarch64.rpm",
          "ghostscript-tools-dvipdf-9.52-7.oe1.aarch64.rpm"
        ],
        "noarch": [
          "ghostscript-help-9.52-7.oe1.noarch.rpm"
        ],
        "src": [
          "ghostscript-9.52-7.oe1.src.rpm"
        ],
        "x86_64": [
          "ghostscript-tools-dvipdf-9.52-7.oe1.x86_64.rpm",
          "ghostscript-devel-9.52-7.oe1.x86_64.rpm",
          "ghostscript-9.52-7.oe1.x86_64.rpm",
          "ghostscript-debuginfo-9.52-7.oe1.x86_64.rpm",
          "ghostscript-debugsource-9.52-7.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "ghostscript",
        "purl": "pkg:rpm/openEuler/ghostscript\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.52-7.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Critical"
  },
  "details": "Ghostscript is an interpreter for PostScript\u2122 and Portable Document Format (PDF) files. Ghostscript consists of a PostScript interpreter layer, and a graphics library.\r\n\r\nSecurity Fix(es):\r\n\r\nA trivial sandbox (enabled with the `-dSAFER` option) escape flaw was found in the ghostscript interpreter by injecting a specially crafted pipe command. This flaw allows a specially crafted document to execute arbitrary commands on the system in the context of the ghostscript interpreter. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.(CVE-2021-3781)",
  "id": "OESA-2022-1560",
  "modified": "2026-08-06T11:04:50Z",
  "published": "2022-03-07T11:04:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1560"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3781"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ghostscript security update",
  "upstream": [
    "CVE-2021-3781"
  ]
}

CVE-2021-3781 (GCVE-0-2021-3781)

Vulnerability from cvelistv5 – Published: 2022-02-16 00:00 – Updated: 2024-08-03 17:09

Summary

A trivial sandbox (enabled with the `-dSAFER` option) escape flaw was found in the ghostscript interpreter by injecting a specially crafted pipe command. This flaw allows a specially crafted document to execute arbitrary commands on the system in the context of the ghostscript interpreter. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Severity

No CVSS data available.

CWE

CWE-20

Assigner

redhat redhat root

References

3 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2002271
https://ghostscript.com/CVE-2021-3781.html
https://security.gentoo.org/glsa/202211-11	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
n/a	ghostscript	Affected: ghostpdl 9.55.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:08.668Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2002271"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://ghostscript.com/CVE-2021-3781.html"
          },
          {
            "name": "GLSA-202211-11",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202211-11"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "ghostscript",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "ghostpdl 9.55.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A trivial sandbox (enabled with the `-dSAFER` option) escape flaw was found in the ghostscript interpreter by injecting a specially crafted pipe command. This flaw allows a specially crafted document to execute arbitrary commands on the system in the context of the ghostscript interpreter. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-11-22T00:00:00.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2002271"
        },
        {
          "url": "https://ghostscript.com/CVE-2021-3781.html"
        },
        {
          "name": "GLSA-202211-11",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202211-11"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-3781",
    "datePublished": "2022-02-16T00:00:00.000Z",
    "dateReserved": "2021-09-09T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:09:08.668Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

OESA-2022-1560 (CVE-2021-3781)

CVE-2021-3781 (GCVE-0-2021-3781)

Tags

Sightings

Nomenclature

Related by attack behaviour