github - GHSA-g3rq-g295-4j3m

GHSA-g3rq-g295-4j3m

Vulnerability from github

Published

2021-03-19 21:28

Modified

2024-09-24 20:40

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Summary

Regular Expression Denial of Service (ReDoS) in Jinja2

Details

This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDOS vulnerability of the regex is mainly due to the sub-pattern [a-zA-Z0-9.-]+.[a-zA-Z0-9.-]+ This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "affected_functions": [
          "jinja2.utils.urlize"
        ]
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "Jinja2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.11.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-28493"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-13T01:08:09Z",
    "nvd_published_at": "2021-02-01T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDOS vulnerability of the regex is mainly due to the sub-pattern [a-zA-Z0-9._-]+.[a-zA-Z0-9._-]+ This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.",
  "id": "GHSA-g3rq-g295-4j3m",
  "modified": "2024-09-24T20:40:19Z",
  "published": "2021-03-19T21:28:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28493"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/pull/1343"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/commit/15ef8f09b659f9100610583938005a7a10472d4d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-g3rq-g295-4j3m"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pallets/jinja"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/blob/ab81fd9c277900c85da0c322a2ff9d68a235b2e6/src/jinja2/utils.py%23L20"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/jinja2/PYSEC-2021-66.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PVAKCOO7VBVUBM3Q6CBBTPBFNP5NDXF4"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202107-19"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/vuln/SNYK-PYTHON-JINJA2-1012994"
    }
  ],
  "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:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Regular Expression Denial of Service (ReDoS) in Jinja2"
}

pysec-2021-66

Vulnerability from pysec

Published

2021-02-01 20:15

Modified

2021-03-22 16:34

Details

This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the _punctuation_re regex operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jinja2",
        "purl": "pkg:pypi/jinja2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.11.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0rc1",
        "2.0",
        "2.1",
        "2.1.1",
        "2.2",
        "2.2.1",
        "2.3",
        "2.3.1",
        "2.4",
        "2.4.1",
        "2.5",
        "2.5.1",
        "2.5.2",
        "2.5.3",
        "2.5.4",
        "2.5.5",
        "2.6",
        "2.7",
        "2.7.1",
        "2.7.2",
        "2.7.3",
        "2.8",
        "2.8.1",
        "2.9",
        "2.9.1",
        "2.9.2",
        "2.9.3",
        "2.9.4",
        "2.9.5",
        "2.9.6",
        "2.10",
        "2.10.1",
        "2.10.2",
        "2.10.3",
        "2.11.0",
        "2.11.1",
        "2.11.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-28493",
    "SNYK-PYTHON-JINJA2-1012994",
    "GHSA-g3rq-g295-4j3m"
  ],
  "details": "This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.",
  "id": "PYSEC-2021-66",
  "modified": "2021-03-22T16:34:00Z",
  "published": "2021-02-01T20:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/blob/ab81fd9c277900c85da0c322a2ff9d68a235b2e6/src/jinja2/utils.py%23L20"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pallets/jinja/pull/1343"
    },
    {
      "type": "ADVISORY",
      "url": "https://snyk.io/vuln/SNYK-PYTHON-JINJA2-1012994"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PVAKCOO7VBVUBM3Q6CBBTPBFNP5NDXF4/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-g3rq-g295-4j3m"
    }
  ]
}

cve-2020-28493

Vulnerability from cvelistv5

Published

2021-02-01 19:30

Modified

2024-09-16 17:24

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P

Summary

This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.

References

▼	URL	Tags
	https://snyk.io/vuln/SNYK-PYTHON-JINJA2-1012994	x_refsource_MISC
	https://github.com/pallets/jinja/blob/ab81fd9c277900c85da0c322a2ff9d68a235b2e6/src/jinja2/utils.py%23L20	x_refsource_MISC
	https://github.com/pallets/jinja/pull/1343	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PVAKCOO7VBVUBM3Q6CBBTPBFNP5NDXF4/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202107-19	vendor-advisory, x_refsource_GENTOO

Impacted products

Vendor

Product

Version

▼

n/a

jinja2

Version: 0.0.0 < unspecified
Version: unspecified < 2.11.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:40:59.546Z",
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        },
        "references": [
          {
            "tags": [
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            ],
            "url": "https://snyk.io/vuln/SNYK-PYTHON-JINJA2-1012994"
          },
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            "tags": [
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            "url": "https://github.com/pallets/jinja/blob/ab81fd9c277900c85da0c322a2ff9d68a235b2e6/src/jinja2/utils.py%23L20"
          },
          {
            "tags": [
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              "x_transferred"
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            "url": "https://github.com/pallets/jinja/pull/1343"
          },
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    ],
    "cna": {
      "affected": [
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          "versions": [
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          ]
        }
      ],
      "credits": [
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      "datePublic": "2021-02-01T00:00:00",
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      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
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            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
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            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "scope": "UNCHANGED",
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          "TITLE": "Regular Expression Denial of Service (ReDoS)"
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        "affects": {
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                          {
                            "version_affected": "\u003e=",
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            },
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    "cveId": "CVE-2020-28493",
    "datePublished": "2021-02-01T19:30:16.601731Z",
    "dateReserved": "2020-11-12T00:00:00",
    "dateUpdated": "2024-09-16T17:24:01.606Z",
    "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

GHSA-g3rq-g295-4j3m

Vulnerability from github

pysec-2021-66

Vulnerability from pysec

cve-2020-28493

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature