pysec - pysec-2021-20

pysec-2021-20

Vulnerability from pysec

Published

2021-03-03 16:15

Modified

2021-05-10 03:15

Details

markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.

Impacted products

Name	purl
markdown2	pkg:pypi/markdown2

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "markdown2",
        "purl": "pkg:pypi/markdown2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.0.1.18"
            },
            {
              "fixed": "2.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.1.18",
        "1.0.1.19",
        "1.1.0",
        "1.1.1",
        "1.2.0",
        "1.3.0",
        "1.3.1",
        "1.4.0",
        "1.4.1",
        "1.4.2",
        "2.0.0",
        "2.0.1",
        "2.1.0",
        "2.2.0",
        "2.2.1",
        "2.2.2",
        "2.2.3",
        "2.3.0",
        "2.3.1",
        "2.3.2",
        "2.3.3",
        "2.3.4",
        "2.3.5",
        "2.3.6",
        "2.3.7",
        "2.3.8",
        "2.3.9",
        "2.3.10"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-26813",
    "GHSA-jr9p-r423-9m2r"
  ],
  "details": "markdown2 \u003e=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.",
  "id": "PYSEC-2021-20",
  "modified": "2021-05-10T03:15:00Z",
  "published": "2021-03-03T16:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/trentm/python-markdown2/pull/387"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BRP5RN35JZTSJ3JT4722F447ZDK7LZS5/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JTIX5UXRDJZJ57DO4V33ZNJTNKWGBQLY/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J752422YELXLMLZJPVJVKD2KKHHQRVEH/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-jr9p-r423-9m2r"
    }
  ]
}

ghsa-jr9p-r423-9m2r

Vulnerability from github

Published

2021-06-02 21:44

Modified

2024-09-30 20:15

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

markdown2 Regular Expression Denial of Service

Details

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "markdown2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.0.1.18"
            },
            {
              "fixed": "2.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-26813"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-12T21:02:47Z",
    "nvd_published_at": "2021-03-03T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "markdown2 \u003e=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.",
  "id": "GHSA-jr9p-r423-9m2r",
  "modified": "2024-09-30T20:15:06Z",
  "published": "2021-06-02T21:44:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26813"
    },
    {
      "type": "WEB",
      "url": "https://github.com/trentm/python-markdown2/pull/387"
    },
    {
      "type": "WEB",
      "url": "https://github.com/trentm/python-markdown2/commit/7b651260739647de5198323e0445b1618750c374"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-jr9p-r423-9m2r"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/markdown2/PYSEC-2021-20.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/trentm/python-markdown2"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BRP5RN35JZTSJ3JT4722F447ZDK7LZS5"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J752422YELXLMLZJPVJVKD2KKHHQRVEH"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JTIX5UXRDJZJ57DO4V33ZNJTNKWGBQLY"
    }
  ],
  "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": "markdown2 Regular Expression Denial of Service "
}

CVE-2021-26813 (GCVE-0-2021-26813)

Vulnerability from cvelistv5

Published

2021-03-03 15:17

Modified

2024-08-03 20:33

Severity ?

CWE

Summary

References

▼	URL	Tags
	https://github.com/trentm/python-markdown2/pull/387	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J752422YELXLMLZJPVJVKD2KKHHQRVEH/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRP5RN35JZTSJ3JT4722F447ZDK7LZS5/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTIX5UXRDJZJ57DO4V33ZNJTNKWGBQLY/	vendor-advisory, x_refsource_FEDORA

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
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          },
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        ],
        "title": "CVE Program Container"
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    "cna": {
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}

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-2021-20

Vulnerability from pysec

ghsa-jr9p-r423-9m2r

Vulnerability from github

CVE-2021-26813 (GCVE-0-2021-26813)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature