csaf_certbund - wid-sec-w-2025-0408

WID-SEC-W-2025-0408

Vulnerability from csaf_certbund - Published: 2025-02-18 23:00 - Updated: 2025-04-16 22:00

Summary

vim: Schwachstelle ermöglicht Manipulation von Dateien

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Vim (Vi IMproved) ist eine Weiterentwicklung des Texteditors vi.

Angriff

Ein lokaler Angreifer kann eine Schwachstelle in vim ausnutzen, um Dateien zu manipulieren.

Betroffene Betriebssysteme

- Linux - Sonstiges - UNIX - Windows

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "niedrig"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Vim (Vi IMproved) ist eine Weiterentwicklung des Texteditors vi.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in vim ausnutzen, um Dateien zu manipulieren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- Sonstiges\n- UNIX\n- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2025-0408 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-0408.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2025-0408 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0408"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker vom 2025-02-18",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2346346"
      },
      {
        "category": "external",
        "summary": "NIST Vulnerability Database vom 2025-02-18",
        "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26603"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2025-3E178BB819 vom 2025-02-20",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2025-3e178bb819"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2025-722D5CA5B9 vom 2025-02-20",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2025-722d5ca5b9"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2025-A71ACB72E9 vom 2025-02-20",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2025-a71acb72e9"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2025-4F7EE73F35 vom 2025-03-04",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2025-4f7ee73f35"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-7419-1 vom 2025-04-07",
        "url": "https://ubuntu.com/security/notices/USN-7419-1"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2025-2827 vom 2025-04-16",
        "url": "https://alas.aws.amazon.com/AL2/ALAS-2025-2827.html"
      }
    ],
    "source_lang": "en-US",
    "title": "vim: Schwachstelle erm\u00f6glicht Manipulation von Dateien",
    "tracking": {
      "current_release_date": "2025-04-16T22:00:00.000+00:00",
      "generator": {
        "date": "2025-04-17T09:11:32.163+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.12"
        }
      },
      "id": "WID-SEC-W-2025-0408",
      "initial_release_date": "2025-02-18T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2025-02-18T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2025-02-19T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2025-03-04T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2025-04-07T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2025-04-16T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Amazon aufgenommen"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c9.1.1115",
                "product": {
                  "name": "Open Source vim \u003c9.1.1115",
                  "product_id": "T041240"
                }
              },
              {
                "category": "product_version",
                "name": "9.1.1115",
                "product": {
                  "name": "Open Source vim 9.1.1115",
                  "product_id": "T041240-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:vim:vim:v9.1.1115"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "vim"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-26603",
      "product_status": {
        "known_affected": [
          "T041240",
          "T000126",
          "398363",
          "74185"
        ]
      },
      "release_date": "2025-02-18T23:00:00.000+00:00",
      "title": "CVE-2025-26603"
    }
  ]
}

CVE-2025-26603 (GCVE-0-2025-26603)

Vulnerability from cvelistv5 – Published: 2025-02-18 19:04 – Updated: 2025-03-07 00:10

Title

heap-use-after-free in function str_to_reg in vim/vim

Summary

Vim is a greatly improved version of the good old UNIX editor Vi. Vim allows to redirect screen messages using the `:redir` ex command to register, variables and files. It also allows to show the contents of registers using the `:registers` or `:display` ex command. When redirecting the output of `:display` to a register, Vim will free the register content before storing the new content in the register. Now when redirecting the `:display` command to a register that is being displayed, Vim will free the content while shortly afterwards trying to access it, which leads to a use-after-free. Vim pre 9.1.1115 checks in the ex_display() function, that it does not try to redirect to a register while displaying this register at the same time. However this check is not complete, and so Vim does not check the `+` and `*` registers (which typically donate the X11/clipboard registers, and when a clipboard connection is not possible will fall back to use register 0 instead. In Patch 9.1.1115 Vim will therefore skip outputting to register zero when trying to redirect to the clipboard registers `*` or `+`. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity ?

4.2 (Medium)


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

CWE

CWE-416 - Use After Free

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vim/vim/security/advisories/GH…	x_refsource_CONFIRM
	https://github.com/vim/vim/commit/c0f0e2380e5954f…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vim	vim	Affected: < 9.1.1115

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-26603",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-19T14:42:36.300267Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-19T15:15:59.589Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-03-07T00:10:51.265Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://security.netapp.com/advisory/ntap-20250306-0003/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "vim",
          "vendor": "vim",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 9.1.1115"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Vim is a greatly improved version of the good old UNIX editor Vi. Vim allows to redirect screen messages using the `:redir` ex command to register, variables and files. It also allows to show the contents of registers using the `:registers` or `:display` ex command. When redirecting the output of `:display` to a register, Vim will free the register content before storing the new content in the register. Now when redirecting the `:display` command to a register that is being displayed, Vim will free the content while shortly afterwards trying to access it, which leads to a use-after-free. Vim pre 9.1.1115 checks in the ex_display() function, that it does not try to redirect to a register while displaying this register at the same time. However this check is not complete, and so Vim does not check the `+` and `*` registers (which typically donate the X11/clipboard registers, and when a clipboard connection is not possible will fall back to use register 0 instead. In Patch 9.1.1115 Vim will therefore skip outputting to register zero when trying to redirect to the clipboard registers `*` or `+`. Users are advised to upgrade. There are no known workarounds for this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416: Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-02-18T19:04:24.273Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/vim/vim/security/advisories/GHSA-63p5-mwg2-787v",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/vim/vim/security/advisories/GHSA-63p5-mwg2-787v"
        },
        {
          "name": "https://github.com/vim/vim/commit/c0f0e2380e5954f4a52a131bf6b8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/vim/vim/commit/c0f0e2380e5954f4a52a131bf6b8"
        }
      ],
      "source": {
        "advisory": "GHSA-63p5-mwg2-787v",
        "discovery": "UNKNOWN"
      },
      "title": "heap-use-after-free in function str_to_reg in vim/vim"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-26603",
    "datePublished": "2025-02-18T19:04:24.273Z",
    "dateReserved": "2025-02-12T14:51:02.717Z",
    "dateUpdated": "2025-03-07T00:10:51.265Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

WID-SEC-W-2025-0408

CVE-2025-26603 (GCVE-0-2025-26603)

Tags

Sightings

Nomenclature