Vulnerability-Lookup

CVE-2025-0665 (GCVE-0-2025-0665)

Vulnerability from cvelistv5 – Published: 2025-02-05 09:16 – Updated: 2026-03-17 17:42

Title

eventfd double close

Summary

libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve.

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-17 17:42 UTC

CWE

CWE-1341 Multiple Releases of Same Resource or Handle

Assigner

curl redhat root

References

6 references

URL	Tags
https://curl.se/docs/CVE-2025-0665.json
https://curl.se/docs/CVE-2025-0665.html
https://hackerone.com/reports/2954286
http://www.openwall.com/lists/oss-security/2025/02/05/2
http://www.openwall.com/lists/oss-security/2025/02/05/5
https://security.netapp.com/advisory/ntap-2025030…

Impacted products

1 product

Vendor	Product	Version	CPE status
curl	curl	Affected: 8.11.1 , ≤ 8.11.1 (semver)	guessed

Credits

Christian Heusel Andy Pan

Show details on NVD website

JSON

To clipboard

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SUSE-SU-2025:20239-1

Vulnerability from csaf_suse - Published: 2025-03-13 10:36 - Updated: 2025-03-13 10:36

Summary

Security update for curl

Severity

Moderate

Scope

4 vulnerabilities in this advisory, including CVE-2025-0665.

CVE-2025-0665

6.5 (Medium)


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

Recommended: 8 products

Open the full advisory

UBUNTU-CVE-2025-0665 (CVE-2025-0665)

Vulnerability from osv_ubuntu – Published: 2025-02-05 00:00 – Updated: 2025-07-16 05:22 – Source website

Withdrawn 2025-07-18

Details

libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve.

Severity

9.8 (Critical)


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

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2025-0665	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-0665	REPORT
	https://curl.se/docs/CVE-2025-0665.html	REPORT

JSON

To clipboard

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        "availability": "No subscription required",
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            "binary_version": "7.68.0-1ubuntu2.25"
          },
          {
            "binary_name": "libcurl3-gnutls",
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          },
          {
            "binary_name": "libcurl3-gnutls-dbgsym",
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            "binary_name": "libcurl3-nss",
            "binary_version": "7.68.0-1ubuntu2.25"
          },
          {
            "binary_name": "libcurl3-nss-dbgsym",
            "binary_version": "7.68.0-1ubuntu2.25"
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          {
            "binary_name": "libcurl4",
            "binary_version": "7.68.0-1ubuntu2.25"
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          {
            "binary_name": "libcurl4-dbgsym",
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            "binary_name": "libcurl4-doc",
            "binary_version": "7.68.0-1ubuntu2.25"
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            "binary_name": "libcurl4-gnutls-dev",
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          {
            "binary_name": "libcurl4-nss-dev",
            "binary_version": "7.68.0-1ubuntu2.25"
          },
          {
            "binary_name": "libcurl4-openssl-dev",
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          }
        ],
        "priority_reason": "Curl developers have rated this as being low severity"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
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      },
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          ],
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      ],
      "versions": [
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    },
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      "ecosystem_specific": {
        "availability": "No subscription required",
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          {
            "binary_name": "curl",
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            "binary_name": "libcurl3-gnutls",
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            "binary_name": "libcurl3-gnutls-dbgsym",
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            "binary_name": "libcurl3-nss",
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          {
            "binary_name": "libcurl3-nss-dbgsym",
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            "binary_name": "libcurl4",
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          {
            "binary_name": "libcurl4-dbgsym",
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            "binary_name": "libcurl4-doc",
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          },
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            "binary_name": "libcurl4-gnutls-dev",
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          {
            "binary_name": "libcurl4-nss-dev",
            "binary_version": "7.81.0-1ubuntu1.20"
          },
          {
            "binary_name": "libcurl4-openssl-dev",
            "binary_version": "7.81.0-1ubuntu1.20"
          }
        ],
        "priority_reason": "Curl developers have rated this as being low severity"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "curl",
        "purl": "pkg:deb/ubuntu/curl@7.81.0-1ubuntu1.20?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.81.0-1ubuntu1.20"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.74.0-1.3ubuntu2",
        "7.74.0-1.3ubuntu3",
        "7.80.0-3",
        "7.81.0-1",
        "7.81.0-1ubuntu1.1",
        "7.81.0-1ubuntu1.2",
        "7.81.0-1ubuntu1.3",
        "7.81.0-1ubuntu1.4",
        "7.81.0-1ubuntu1.6",
        "7.81.0-1ubuntu1.7",
        "7.81.0-1ubuntu1.8",
        "7.81.0-1ubuntu1.10",
        "7.81.0-1ubuntu1.11",
        "7.81.0-1ubuntu1.13",
        "7.81.0-1ubuntu1.14",
        "7.81.0-1ubuntu1.15",
        "7.81.0-1ubuntu1.16",
        "7.81.0-1ubuntu1.17",
        "7.81.0-1ubuntu1.18",
        "7.81.0-1ubuntu1.19"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "curl",
            "binary_version": "8.5.0-2ubuntu10.6"
          },
          {
            "binary_name": "curl-dbgsym",
            "binary_version": "8.5.0-2ubuntu10.6"
          },
          {
            "binary_name": "libcurl3t64-gnutls",
            "binary_version": "8.5.0-2ubuntu10.6"
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          {
            "binary_name": "libcurl3t64-gnutls-dbgsym",
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            "binary_name": "libcurl4-doc",
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            "binary_name": "libcurl4-gnutls-dev",
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            "binary_name": "libcurl4-openssl-dev",
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            "binary_name": "libcurl4t64-dbgsym",
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        ],
        "priority_reason": "Curl developers have rated this as being low severity"
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "curl",
        "purl": "pkg:deb/ubuntu/curl@8.5.0-2ubuntu10.6?arch=source\u0026distro=noble"
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      "ranges": [
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          "events": [
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              "introduced": "0"
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              "fixed": "8.5.0-2ubuntu10.6"
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          "type": "ECOSYSTEM"
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      "versions": [
        "8.2.1-1ubuntu3",
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          {
            "binary_name": "libcurl4-openssl-dev",
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            "binary_name": "libcurl4t64",
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          },
          {
            "binary_name": "libcurl4t64-dbgsym",
            "binary_version": "8.12.1-3ubuntu1"
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        ],
        "priority_reason": "Curl developers have rated this as being low severity"
      },
      "package": {
        "ecosystem": "Ubuntu:25.04",
        "name": "curl",
        "purl": "pkg:deb/ubuntu/curl@8.12.1-3ubuntu1?arch=source\u0026distro=plucky"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
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        "8.12.1-2ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve.",
  "id": "UBUNTU-CVE-2025-0665",
  "modified": "2025-07-16T05:22:06Z",
  "published": "2025-02-05T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-0665"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-0665"
    },
    {
      "type": "REPORT",
      "url": "https://curl.se/docs/CVE-2025-0665.html"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-0665"
  ],
  "withdrawn": "2025-07-18T17:02:41Z"
}

VDE-2025-053

Vulnerability from csaf_phoenixcontactgmbhcokg - Published: 2025-07-08 10:00 - Updated: 2025-07-08 10:00

Summary

Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware

Severity

Critical

Scope

54 vulnerabilities in this advisory, including CVE-2025-0665.

CVE-2025-0665

libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve.

9.8 (Critical)


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

Fixed: 5 products Known affected: 5 products

Open the full advisory

WID-SEC-W-2025-0270

Vulnerability from csaf_certbund - Published: 2025-02-04 23:00 - Updated: 2026-03-11 23:00

Summary

cURL: Mehrere Schwachstellen

Severity

Mittel

Scope

3 vulnerabilities in this advisory, including CVE-2025-0665.

CVE-2025-0665

Known affected: 30 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.

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.

Action not permitted

CVE-2025-0665 (GCVE-0-2025-0665)

SUSE-SU-2025:20239-1

UBUNTU-CVE-2025-0665 (CVE-2025-0665)

VDE-2025-053

WID-SEC-W-2025-0270

Tags

Sightings

Nomenclature

Related by attack behaviour