pysec - pysec-2021-140

pysec-2021-140

Vulnerability from pysec

Published

2021-03-23 17:15

Modified

2021-08-27 03:22

Details

An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the "exception" keyword.

Aliases

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pygments",
        "purl": "pkg:pypi/pygments"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.5"
            },
            {
              "fixed": "2.7.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5",
        "1.6",
        "1.6rc1",
        "2.0",
        "2.0.1",
        "2.0.2",
        "2.0rc1",
        "2.1",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.2.0",
        "2.3.0",
        "2.3.1",
        "2.4.0",
        "2.4.1",
        "2.4.2",
        "2.5.1",
        "2.5.2",
        "2.6.0",
        "2.6.1",
        "2.7.0",
        "2.7.1",
        "2.7.2",
        "2.7.3"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-20270",
    "GHSA-9w8r-397f-prfh"
  ],
  "details": "An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the \"exception\" keyword.",
  "id": "PYSEC-2021-140",
  "modified": "2021-08-27T03:22:17.263376Z",
  "published": "2021-03-23T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922136"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.debian.org/security/2021/dsa-4889"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-9w8r-397f-prfh"
    }
  ]
}

ghsa-9w8r-397f-prfh

Vulnerability from github

Published

2021-04-20 16:35

Modified

2024-10-14 16:12

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Summary

Infinite Loop in Pygments

Details

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Pygments"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.5"
            },
            {
              "fixed": "2.7.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-20270"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-04-12T20:58:03Z",
    "nvd_published_at": "2021-03-23T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the \"exception\" keyword.",
  "id": "GHSA-9w8r-397f-prfh",
  "modified": "2024-10-14T16:12:14Z",
  "published": "2021-04-20T16:35:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20270"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pygments/pygments/commit/f91804ff4772e3ab41f46e28d370f57898700333"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922136"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pygments/pygments"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-140.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4889"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    }
  ],
  "schema_version": "1.4.0",
  "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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Infinite Loop in Pygments"
}

cve-2021-20270

Vulnerability from cvelistv5

Published

2021-03-23 16:40

Modified

2024-08-03 17:37

Severity ?

Summary

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1922136	x_refsource_MISC
	https://www.debian.org/security/2021/dsa-4889	vendor-advisory, x_refsource_DEBIAN
	https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html	mailing-list, x_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html	mailing-list, x_refsource_MLIST
	https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC

Impacted products

▼	Vendor	Product
	n/a	python-pygments

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:37:23.034Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922136"
          },
          {
            "name": "DSA-4889",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-4889"
          },
          {
            "name": "[debian-lts-announce] 20210505 [SECURITY] [DLA 2648-1] mediawiki security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
          },
          {
            "name": "[debian-lts-announce] 20210506 [SECURITY] [DLA 2648-2] mediawiki regression update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "python-pygments",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "python-pygments 2.7.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the \"exception\" keyword."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-20T10:40:34",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922136"
        },
        {
          "name": "DSA-4889",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2021/dsa-4889"
        },
        {
          "name": "[debian-lts-announce] 20210505 [SECURITY] [DLA 2648-1] mediawiki security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
        },
        {
          "name": "[debian-lts-announce] 20210506 [SECURITY] [DLA 2648-2] mediawiki regression update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2021-20270",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "python-pygments",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "python-pygments 2.7.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the \"exception\" keyword."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-835"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1922136",
              "refsource": "MISC",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922136"
            },
            {
              "name": "DSA-4889",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4889"
            },
            {
              "name": "[debian-lts-announce] 20210505 [SECURITY] [DLA 2648-1] mediawiki security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
            },
            {
              "name": "[debian-lts-announce] 20210506 [SECURITY] [DLA 2648-2] mediawiki regression update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-20270",
    "datePublished": "2021-03-23T16:40:22",
    "dateReserved": "2020-12-17T00:00:00",
    "dateUpdated": "2024-08-03T17:37:23.034Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2021-140

Vulnerability from pysec

ghsa-9w8r-397f-prfh

Vulnerability from github

cve-2021-20270

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature