Vulnerability-Lookup

OESA-2022-2131 (CVE-2022-45939)

Vulnerability from osv_openeuler – Published: 2022-12-09 11:05 – Updated: 2026-08-06 11:05 – Source website

Summary

emacs security update

Details

Emacs is the extensible, customizable, self-documenting real-time display editor.At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. And it is an entire ecosystem of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, and more.

Security Fix(es):

GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the "ctags *" command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input.(CVE-2022-45939)

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-2022-45939	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "emacs-devel-27.1-9.oe1.aarch64.rpm",
          "emacs-debugsource-27.1-9.oe1.aarch64.rpm",
          "emacs-common-27.1-9.oe1.aarch64.rpm",
          "emacs-nox-27.1-9.oe1.aarch64.rpm",
          "emacs-debuginfo-27.1-9.oe1.aarch64.rpm",
          "emacs-lucid-27.1-9.oe1.aarch64.rpm",
          "emacs-27.1-9.oe1.aarch64.rpm"
        ],
        "noarch": [
          "emacs-terminal-27.1-9.oe1.noarch.rpm",
          "emacs-help-27.1-9.oe1.noarch.rpm",
          "emacs-filesystem-27.1-9.oe1.noarch.rpm"
        ],
        "src": [
          "emacs-27.1-9.oe1.src.rpm"
        ],
        "x86_64": [
          "emacs-nox-27.1-9.oe1.x86_64.rpm",
          "emacs-debuginfo-27.1-9.oe1.x86_64.rpm",
          "emacs-27.1-9.oe1.x86_64.rpm",
          "emacs-lucid-27.1-9.oe1.x86_64.rpm",
          "emacs-devel-27.1-9.oe1.x86_64.rpm",
          "emacs-debugsource-27.1-9.oe1.x86_64.rpm",
          "emacs-common-27.1-9.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "emacs",
        "purl": "pkg:rpm/openEuler/emacs\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "27.1-9.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "emacs-nox-27.1-7.oe1.aarch64.rpm",
          "emacs-27.1-7.oe1.aarch64.rpm",
          "emacs-common-27.1-7.oe1.aarch64.rpm",
          "emacs-debugsource-27.1-7.oe1.aarch64.rpm",
          "emacs-debuginfo-27.1-7.oe1.aarch64.rpm",
          "emacs-devel-27.1-7.oe1.aarch64.rpm",
          "emacs-lucid-27.1-7.oe1.aarch64.rpm"
        ],
        "noarch": [
          "emacs-help-27.1-7.oe1.noarch.rpm",
          "emacs-filesystem-27.1-7.oe1.noarch.rpm",
          "emacs-terminal-27.1-7.oe1.noarch.rpm"
        ],
        "src": [
          "emacs-27.1-7.oe1.src.rpm"
        ],
        "x86_64": [
          "emacs-lucid-27.1-7.oe1.x86_64.rpm",
          "emacs-nox-27.1-7.oe1.x86_64.rpm",
          "emacs-debugsource-27.1-7.oe1.x86_64.rpm",
          "emacs-debuginfo-27.1-7.oe1.x86_64.rpm",
          "emacs-27.1-7.oe1.x86_64.rpm",
          "emacs-devel-27.1-7.oe1.x86_64.rpm",
          "emacs-common-27.1-7.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP3",
        "name": "emacs",
        "purl": "pkg:rpm/openEuler/emacs\u0026distro=openEuler-20.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "27.1-7.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "emacs-debuginfo-27.2-8.oe2203.aarch64.rpm",
          "emacs-devel-27.2-8.oe2203.aarch64.rpm",
          "emacs-debugsource-27.2-8.oe2203.aarch64.rpm",
          "emacs-27.2-8.oe2203.aarch64.rpm",
          "emacs-common-27.2-8.oe2203.aarch64.rpm",
          "emacs-lucid-27.2-8.oe2203.aarch64.rpm",
          "emacs-nox-27.2-8.oe2203.aarch64.rpm"
        ],
        "noarch": [
          "emacs-help-27.2-8.oe2203.noarch.rpm",
          "emacs-terminal-27.2-8.oe2203.noarch.rpm",
          "emacs-filesystem-27.2-8.oe2203.noarch.rpm"
        ],
        "src": [
          "emacs-27.2-8.oe2203.src.rpm"
        ],
        "x86_64": [
          "emacs-27.2-8.oe2203.x86_64.rpm",
          "emacs-devel-27.2-8.oe2203.x86_64.rpm",
          "emacs-lucid-27.2-8.oe2203.x86_64.rpm",
          "emacs-debugsource-27.2-8.oe2203.x86_64.rpm",
          "emacs-common-27.2-8.oe2203.x86_64.rpm",
          "emacs-debuginfo-27.2-8.oe2203.x86_64.rpm",
          "emacs-nox-27.2-8.oe2203.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS",
        "name": "emacs",
        "purl": "pkg:rpm/openEuler/emacs\u0026distro=openEuler-22.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "27.2-8.oe2203"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Emacs is the extensible, customizable, self-documenting real-time display editor.At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. And it is an entire ecosystem of functionality beyond text editing, including a project planner, mail and news reader, debugger interface, calendar, and more.\r\n\r\nSecurity Fix(es):\r\n\r\nGNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the \u0026quot;ctags *\u0026quot; command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input.(CVE-2022-45939)",
  "id": "OESA-2022-2131",
  "modified": "2026-08-06T11:05:27Z",
  "published": "2022-12-09T11:05:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-2131"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-45939"
    }
  ],
  "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": "emacs security update",
  "upstream": [
    "CVE-2022-45939"
  ]
}

CVE-2022-45939 (GCVE-0-2022-45939)

Vulnerability from cvelistv5 – Published: 2022-11-28 00:00 – Updated: 2025-04-28 18:12

Summary

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-28 18:11 UTC

CWE

n/a
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

mitre mitre root

References

5 references

URL	Tags
https://git.savannah.gnu.org/cgit/emacs.git/commi…
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.debian.org/security/2023/dsa-5314	vendor-advisory

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T14:24:03.228Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=d48bb4874bc6cd3e69c7a15fc3c91cc141025c51"
          },
          {
            "name": "[debian-lts-announce] 20221231 [SECURITY] [DLA 3257-1] emacs security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00046.html"
          },
          {
            "name": "FEDORA-2022-d69c7f95a4",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GOXIH2FDEQJEAARE52C3GHTLGQFBYPIB/"
          },
          {
            "name": "FEDORA-2022-e37f239f2e",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FOSK3J7BBAEI4IITW2DRUKLQYUZYKH6Y/"
          },
          {
            "name": "DSA-5314",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2023/dsa-5314"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-45939",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-28T18:11:50.347302Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-78",
                "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-28T18:12:24.092Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the ctags program. For example, a victim may use the \"ctags *\" command (suggested in the ctags documentation) in a situation where the current working directory has contents that depend on untrusted input."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
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      ],
      "providerMetadata": {
        "dateUpdated": "2023-01-12T00:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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      },
      "references": [
        {
          "url": "https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=d48bb4874bc6cd3e69c7a15fc3c91cc141025c51"
        },
        {
          "name": "[debian-lts-announce] 20221231 [SECURITY] [DLA 3257-1] emacs security update",
          "tags": [
            "mailing-list"
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          "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00046.html"
        },
        {
          "name": "FEDORA-2022-d69c7f95a4",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GOXIH2FDEQJEAARE52C3GHTLGQFBYPIB/"
        },
        {
          "name": "FEDORA-2022-e37f239f2e",
          "tags": [
            "vendor-advisory"
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FOSK3J7BBAEI4IITW2DRUKLQYUZYKH6Y/"
        },
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2022-45939",
    "datePublished": "2022-11-28T00:00:00.000Z",
    "dateReserved": "2022-11-28T00:00:00.000Z",
    "dateUpdated": "2025-04-28T18:12:24.092Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

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.