Vulnerability-Lookup

CVE-2021-36770 (GCVE-0-2021-36770)

Vulnerability from cvelistv5 – Published: 2021-08-11 22:49 – Updated: 2025-11-03 21:45

Summary

Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value.

Severity

7.8 (High)


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

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2328 records in the last 180 days details

References

9 references

URL	Tags
https://metacpan.org/dist/Encode/changes	x_refsource_CONFIRM
https://security-tracker.debian.org/tracker/CVE-2…	x_refsource_MISC
https://github.com/dankogai/p5-encode/commit/527e…	x_refsource_CONFIRM
https://github.com/Perl/perl5/commit/c1a937fef07c…	x_refsource_CONFIRM
https://news.cpanel.com/unscheduled-tsr-10-august-2021/	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
https://security.netapp.com/advisory/ntap-2021090…	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2024110…

Show details on NVD website

JSON

To clipboard

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  }
}

GSD-2021-36770

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-36770

Aliases

CVE-2021-36770

JSON

To clipboard

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    "description": "Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value.",
    "id": "GSD-2021-36770",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-36770.html",
      "https://ubuntu.com/security/CVE-2021-36770",
      "https://advisories.mageia.org/CVE-2021-36770.html",
      "https://security.archlinux.org/CVE-2021-36770"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "modified": "2023-12-13T01:23:16.868678Z",
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    }
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            "availabilityImpact": "PARTIAL",
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            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
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          "impactScore": 6.4,
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          "userInteractionRequired": true
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            "baseScore": 7.8,
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            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "exploitabilityScore": 1.8,
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      "lastModifiedDate": "2021-09-21T19:43Z",
      "publishedDate": "2021-08-11T23:15Z"
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  }
}

OESA-2022-1549 (CVE-2021-36770)

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

Summary

perl-Encode security update

Details

Character encodings in Perl.

Security Fix(es):

Severity

7.8 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/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-2021-36770	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "perl-Encode-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-devel-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-debugsource-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-debuginfo-3.06-2.oe1.aarch64.rpm"
        ],
        "noarch": [
          "perl-Encode-help-3.06-2.oe1.noarch.rpm"
        ],
        "src": [
          "perl-Encode-3.06-2.oe1.src.rpm"
        ],
        "x86_64": [
          "perl-Encode-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-debugsource-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-devel-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-debuginfo-3.06-2.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "perl-Encode",
        "purl": "pkg:rpm/openEuler/perl-Encode\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.06-2.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "perl-Encode-devel-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-debuginfo-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-debugsource-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-3.06-2.oe1.aarch64.rpm"
        ],
        "noarch": [
          "perl-Encode-help-3.06-2.oe1.noarch.rpm"
        ],
        "src": [
          "perl-Encode-3.06-2.oe1.src.rpm"
        ],
        "x86_64": [
          "perl-Encode-debuginfo-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-devel-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-debugsource-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-3.06-2.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP2",
        "name": "perl-Encode",
        "purl": "pkg:rpm/openEuler/perl-Encode\u0026distro=openEuler-20.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.06-2.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "perl-Encode-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-devel-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-debuginfo-3.06-2.oe1.aarch64.rpm",
          "perl-Encode-debugsource-3.06-2.oe1.aarch64.rpm"
        ],
        "noarch": [
          "perl-Encode-help-3.06-2.oe1.noarch.rpm"
        ],
        "src": [
          "perl-Encode-3.06-2.oe1.src.rpm"
        ],
        "x86_64": [
          "perl-Encode-debugsource-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-devel-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-3.06-2.oe1.x86_64.rpm",
          "perl-Encode-debuginfo-3.06-2.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "perl-Encode",
        "purl": "pkg:rpm/openEuler/perl-Encode\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.06-2.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Character encodings in Perl.\r\n\r\nSecurity Fix(es):\r\n\r\nEncode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value.(CVE-2021-36770)",
  "id": "OESA-2022-1549",
  "modified": "2026-08-06T11:04:49Z",
  "published": "2022-03-07T11:04:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1549"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36770"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "perl-Encode security update",
  "upstream": [
    "CVE-2021-36770"
  ]
}

UBUNTU-CVE-2021-36770 (CVE-2021-36770)

Vulnerability from osv_ubuntu – Published: 2021-08-09 00:00 – Updated: 2026-10-17 09:08 – Source website

Details

Severity

7.8 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-36770	REPORT
	https://ubuntu.com/security/notices/USN-5033-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-36770	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libencode-perl",
            "binary_version": "2.82-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libencode-perl",
        "purl": "pkg:deb/ubuntu/libencode-perl@2.82-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.76-1",
        "2.78-1",
        "2.78-1build1",
        "2.79-1",
        "2.82-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libencode-perl",
            "binary_version": "3.16-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libencode-perl",
        "purl": "pkg:deb/ubuntu/libencode-perl@3.16-1build1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.08-2",
        "3.16-1",
        "3.16-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libperl5.32",
            "binary_version": "5.32.1-3ubuntu3"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.32.1-3ubuntu3"
          },
          {
            "binary_name": "perl-base",
            "binary_version": "5.32.1-3ubuntu3"
          },
          {
            "binary_name": "perl-debug",
            "binary_version": "5.32.1-3ubuntu3"
          },
          {
            "binary_name": "perl-modules-5.32",
            "binary_version": "5.32.1-3ubuntu3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "perl",
        "purl": "pkg:deb/ubuntu/perl@5.32.1-3ubuntu3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.32.1-3ubuntu3"
            }
          ],
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        }
      ],
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    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libencode-perl",
            "binary_version": "3.21-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libencode-perl",
        "purl": "pkg:deb/ubuntu/libencode-perl@3.21-1build2?arch=source\u0026distro=noble"
      },
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        {
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            {
              "introduced": "0"
            }
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      ],
      "versions": [
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      ]
    },
    {
      "ecosystem_specific": {
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  "aliases": [],
  "details": "Encode.pm, as distributed in Perl through 5.34.0, allows local users to gain privileges via a Trojan horse Encode::ConfigLocal library (in the current working directory) that preempts dynamic module loading. Exploitation requires an unusual configuration, and certain 2021 versions of Encode.pm (3.05 through 3.11). This issue occurs because the || operator evaluates @INC in a scalar context, and thus @INC has only an integer value.",
  "id": "UBUNTU-CVE-2021-36770",
  "modified": "2026-10-17T09:08:29Z",
  "published": "2021-08-09T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-36770"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5033-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-36770"
    }
  ],
  "related": [
    "USN-5033-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-36770"
  ]
}

WID-SEC-W-2023-0132

Vulnerability from csaf_certbund - Published: 2023-01-17 23:00 - Updated: 2023-05-01 22:00

Summary

Oracle Fusion Middleware: Mehrere Schwachstellen

Severity

Kritisch

Scope

44 vulnerabilities in this advisory, including CVE-2021-36770.

CVE-2021-36770

In Oracle Fusion Middleware existieren mehrere Schwachstellen. Durch Ausnutzung dieser Schwachstellen kann ein entfernter, anonymer Angreifer die Vertraulichkeit, Integrität und Verfügbarkeit gefährden. Für die Ausnutzung einiger dieser Schwachstellen ist keine Benutzerinteraktion notwendig. Oracle veröffentlicht keine weiteren Details zu diesen Schwachstellen (außer der Information in der Risiko Matrix im Oracle Advisory zum Critical Patch Update, siehe Link unten in diesem Advisory). Aufgrund der knappen Informationslage erfolgt die Bewertung der Schadenshöhe ausschließlich auf Basis der CVSS Impact Matrix. Der Maximalwert für diese Produkte ist "HIGH" für "Confidentiality", "Integrity" und "Availability" über alle Schwachstellen aggregiert und bewirkt damit eine Bewertung mit dem Wert "HOCH" für die Schadenshöhe.

Known affected: 6 products

Open the full advisory

WID-SEC-W-2024-0874

Vulnerability from csaf_certbund - Published: 2024-04-16 22:00 - Updated: 2024-04-16 22:00

Summary

Oracle Enterprise Manager: Mehrere Schwachstellen

Severity

Hoch

Scope

10 vulnerabilities in this advisory, including CVE-2021-36770.

CVE-2021-36770

In Oracle Enterprise Manager existieren mehrere Schwachstellen. Durch Ausnutzung dieser Schwachstellen kann ein entfernter, anonymer oder authentisierter Angreifer die Vertraulichkeit, Integrität und Verfügbarkeit gefährden. Für die Ausnutzung einiger dieser Schwachstellen ist keine Benutzerinteraktion notwendig. Oracle veröffentlicht keine weiteren Details zu diesen Schwachstellen (außer der Information in der Risiko Matrix im Oracle Advisory zum Critical Patch Update, siehe Link unten in diesem Advisory). Aufgrund der knappen Informationslage erfolgt die Bewertung der Schadenshöhe ausschließlich auf Basis der CVSS Impact Matrix. Der Maximalwert für diese Produkte ist "HIGH" für "Confidentiality", "Integrity" und "Availability" über alle Schwachstellen aggregiert und bewirkt damit eine Bewertung mit dem Wert "HOCH" für die Schadenshöhe.

Known affected: 2 products

Open the full advisory

WID-SEC-W-2024-3476

Vulnerability from csaf_certbund - Published: 2021-08-09 22:00 - Updated: 2026-04-19 22:00

Summary

Perl: Schwachstelle ermöglicht Codeausführung

Severity

Mittel

Scope

1 vulnerability in this advisory, including CVE-2021-36770.

CVE-2021-36770

Known affected: 4 products

Open the full advisory

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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

CVE-2021-36770 (GCVE-0-2021-36770)

GSD-2021-36770

OESA-2022-1549 (CVE-2021-36770)

UBUNTU-CVE-2021-36770 (CVE-2021-36770)

WID-SEC-W-2023-0132

WID-SEC-W-2024-0874

WID-SEC-W-2024-3476

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour