Vulnerability-Lookup

PYSEC-2021-345

Vulnerability from pysec - Published: 2021-09-10 02:15 - Updated: 2021-09-26 23:32

Details

The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\x2f\x7f), enabling a remote attack that consumes CPU and memory.

Impacted products

Name	purl
rencode	pkg:pypi/rencode

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "rencode",
        "purl": "pkg:pypi/rencode"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "572ff74586d9b1daab904c6f7f7009ce0143bb75"
            }
          ],
          "repo": "https://github.com/aresch/rencode",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.3",
        "1.0.4",
        "1.0.5",
        "1.0.6"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-40839",
    "GHSA-gh8j-2pgf-x458"
  ],
  "details": "The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\\x2f\\x7f), enabling a remote attack that consumes CPU and memory.",
  "id": "PYSEC-2021-345",
  "modified": "2021-09-26T23:32:54.963571Z",
  "published": "2021-09-10T02:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/aresch/rencode/pull/29"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/rencode/#history"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/fulldisclosure/2021/Sep/16"
    },
    {
      "type": "FIX",
      "url": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-gh8j-2pgf-x458"
    }
  ]
}

GHSA-GH8J-2PGF-X458

Vulnerability from github – Published: 2021-09-13 20:05 – Updated: 2024-10-26 18:35

Summary

Infinite Loop in rencode

Details

The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\x2f\x7f), enabling a remote attack that consumes CPU and memory.

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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "rencode"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-40839"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-09-13T19:11:37Z",
    "nvd_published_at": "2021-09-10T02:15:00Z",
    "severity": "HIGH"
  },
  "details": "The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\\x2f\\x7f), enabling a remote attack that consumes CPU and memory.",
  "id": "GHSA-gh8j-2pgf-x458",
  "modified": "2024-10-26T18:35:18Z",
  "published": "2021-09-13T20:05:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40839"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aresch/rencode/pull/29"
    },
    {
      "type": "WEB",
      "url": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-gh8j-2pgf-x458"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/aresch/rencode"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/rencode/PYSEC-2021-345.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMVQRPDVSVZNGGX57CFKCYT3DEYO4QB6"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MCLETLGVM5DBX6QNHQFW6TWGO5T3DENY"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/rencode/#history"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/fulldisclosure/2021/Sep/16"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20211008-0001"
    }
  ],
  "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 rencode"
}

CVE-2021-40839 (GCVE-0-2021-40839)

Vulnerability from cvelistv5 – Published: 2021-09-10 01:03 – Updated: 2024-08-04 02:51

Summary

The rencode package through 1.0.6 for Python allows an infinite loop in typecode decoding (such as via ;\x2f\x7f), enabling a remote attack that consumes CPU and memory.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/aresch/rencode/pull/29	x_refsource_MISC
	https://seclists.org/fulldisclosure/2021/Sep/16	x_refsource_MISC
	https://github.com/aresch/rencode/commit/572ff745…	x_refsource_MISC
	https://pypi.org/project/rencode/#history	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-2021100…	x_refsource_CONFIRM
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

{
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        "references": [
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            "url": "https://github.com/aresch/rencode/pull/29"
          },
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          },
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            "url": "https://github.com/aresch/rencode/commit/572ff74586d9b1daab904c6f7f7009ce0143bb75"
          },
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            "url": "https://pypi.org/project/rencode/#history"
          },
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            "url": "https://security.netapp.com/advisory/ntap-20211008-0001/"
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          },
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            "name": "FEDORA-2022-1033a2718b",
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        ],
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    "cna": {
      "affected": [
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      "providerMetadata": {
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        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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          "tags": [
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

PYSEC-2021-345

GHSA-GH8J-2PGF-X458

CVE-2021-40839 (GCVE-0-2021-40839)

Tags

Sightings

Nomenclature