Vulnerability-Lookup

SUSE-SU-2025:20675-1

Vulnerability from csaf_suse - Published: 2025-09-09 10:21 - Updated: 2026-09-20 18:16

Summary

Security update for curl

Severity

Important

Notes

Title of the patch: Security update for curl

Description of the patch: This update for curl fixes the following issues: - CVE-2025-5399: libcurl can possibly get trapped in an endless busy-loop when processing specially crafted packets (bsc#1243933). - CVE-2025-5025: No QUIC certificate pinning with wolfSSL (bsc#1243706). - CVE-2025-4947: QUIC certificate check skip with wolfSSL (bsc#1243397). Other bugfixes: - Fix the --ftp-pasv option in curl v8.14.1 (bsc#1246197).

Patchnames: SUSE-SLE-Micro-6.1-254

CVE-2025-4947

6.5 (Medium)


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

Affected products

Recommended 8 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2025-5025

6.5 (Medium)


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

Affected products

Recommended 8 products, the same list as for CVE-2025-4947

Threats

Impact moderate

CVE-2025-5399

6.5 (Medium)


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

Affected products

Recommended 8 products, the same list as for CVE-2025-4947

Threats

Impact moderate

References

17 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-updates/2025…	self
https://bugzilla.suse.com/1243397	self
https://bugzilla.suse.com/1243706	self
https://bugzilla.suse.com/1243933	self
https://bugzilla.suse.com/1246197	self
https://www.suse.com/security/cve/CVE-2025-4947/	self
https://www.suse.com/security/cve/CVE-2025-5025/	self
https://www.suse.com/security/cve/CVE-2025-5399/	self
https://www.suse.com/security/cve/CVE-2025-4947	external
https://bugzilla.suse.com/1243397	external
https://www.suse.com/security/cve/CVE-2025-5025	external
https://bugzilla.suse.com/1243706	external
https://www.suse.com/security/cve/CVE-2025-5399	external
https://bugzilla.suse.com/1243933	external

JSON

To clipboard

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  "vulnerabilities": [
    {
      "cve": "CVE-2025-4947",
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          "text": "libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks.",
          "title": "CVE description"
        }
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      "remediations": [
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          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.x86_64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64",
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      "scores": [
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
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            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-09-09T10:21:16Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2025-4947"
    },
    {
      "cve": "CVE-2025-5025",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-5025"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.aarch64",
          "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.ppc64le",
          "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.s390x",
          "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.x86_64",
          "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64",
          "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.ppc64le",
          "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.s390x",
          "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-5025",
          "url": "https://www.suse.com/security/cve/CVE-2025-5025"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1243706 for CVE-2025-5025",
          "url": "https://bugzilla.suse.com/1243706"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.x86_64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.x86_64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-09-09T10:21:16Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2025-5025"
    },
    {
      "cve": "CVE-2025-5399",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-5399"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Due to a mistake in libcurl\u0027s WebSocket code, a malicious server can send a\nparticularly crafted packet which makes libcurl get trapped in an endless\nbusy-loop.\n\nThere is no other way for the application to escape or exit this loop other\nthan killing the thread/process.\n\nThis might be used to DoS libcurl-using application.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.aarch64",
          "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.ppc64le",
          "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.s390x",
          "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.x86_64",
          "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64",
          "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.ppc64le",
          "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.s390x",
          "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-5399",
          "url": "https://www.suse.com/security/cve/CVE-2025-5399"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1243933 for CVE-2025-5399",
          "url": "https://bugzilla.suse.com/1243933"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.x86_64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:curl-0:8.14.1-slfo.1.1_1.1.x86_64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.ppc64le",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.s390x",
            "SUSE Linux Micro 6.1:libcurl4-0:8.14.1-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-09-09T10:21:16Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2025-5399"
    }
  ]
}

CVE-2025-4947 (GCVE-0-2025-4947)

Vulnerability from cvelistv5 – Published: 2025-05-28 06:29 – Updated: 2025-05-28 13:58

Title

QUIC certificate check skip with wolfSSL

Summary

libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks.

Severity

6.5 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-28 13:57 UTC

CWE

CWE-295 Improper Certificate Validation

Assigner

curl CNA under the redhat root

CNA scorecard D 49/100 over 36 records in the last 180 days details

References

4 references

URL	Tags
https://curl.se/docs/CVE-2025-4947.json
https://curl.se/docs/CVE-2025-4947.html
https://hackerone.com/reports/3150884
http://www.openwall.com/lists/oss-security/2025/05/28/4

Impacted products

1 product

Vendor	Product	Version
curl	curl	Affected: 8.13.0 , ≤ 8.13.0 (semver) Affected: 8.12.1 , ≤ 8.12.1 (semver) Affected: 8.12.0 , ≤ 8.12.0 (semver) Affected: 8.11.1 , ≤ 8.11.1 (semver) Affected: 8.11.0 , ≤ 8.11.0 (semver) Affected: 8.10.1 , ≤ 8.10.1 (semver) Affected: 8.10.0 , ≤ 8.10.0 (semver) Affected: 8.9.1 , ≤ 8.9.1 (semver) Affected: 8.9.0 , ≤ 8.9.0 (semver) Affected: 8.8.0 , ≤ 8.8.0 (semver)

Credits

Hiroki Kurosawa Stefan Eissing

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-05-28T08:03:56.748Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/05/28/4"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-4947",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-28T13:57:59.462879Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-28T13:58:33.430Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.1",
              "status": "affected",
              "version": "8.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
              "version": "8.11.1",
              "versionType": "semver"
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              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
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              "status": "affected",
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          "lang": "en",
          "type": "finder",
          "value": "Hiroki Kurosawa"
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          "lang": "en",
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          "value": "libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-295 Improper Certificate Validation",
              "lang": "en"
            }
          ]
        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-28T06:29:34.974Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
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          "name": "json",
          "url": "https://curl.se/docs/CVE-2025-4947.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2025-4947.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3150884"
        }
      ],
      "title": "QUIC certificate check skip with wolfSSL"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2025-4947",
    "datePublished": "2025-05-28T06:29:34.974Z",
    "dateReserved": "2025-05-19T06:09:52.737Z",
    "dateUpdated": "2025-05-28T13:58:33.430Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2025-5025 (GCVE-0-2025-5025)

Vulnerability from cvelistv5 – Published: 2025-05-28 06:29 – Updated: 2025-05-30 16:19

Title

No QUIC certificate pinning with wolfSSL

Summary

libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing.

Severity

4.8 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-30 16:19 UTC

CWE

CWE-295 Improper Certificate Validation

Assigner

curl CNA under the redhat root

CNA scorecard D 49/100 over 36 records in the last 180 days details

References

4 references

URL	Tags
https://curl.se/docs/CVE-2025-5025.json
https://curl.se/docs/CVE-2025-5025.html
https://hackerone.com/reports/3153497
http://www.openwall.com/lists/oss-security/2025/05/28/5

Impacted products

1 product

Vendor	Product	Version
curl	curl	Affected: 8.13.0 , ≤ 8.13.0 (semver) Affected: 8.12.1 , ≤ 8.12.1 (semver) Affected: 8.12.0 , ≤ 8.12.0 (semver) Affected: 8.11.1 , ≤ 8.11.1 (semver) Affected: 8.11.0 , ≤ 8.11.0 (semver) Affected: 8.10.1 , ≤ 8.10.1 (semver) Affected: 8.10.0 , ≤ 8.10.0 (semver) Affected: 8.9.1 , ≤ 8.9.1 (semver) Affected: 8.9.0 , ≤ 8.9.0 (semver) Affected: 8.8.0 , ≤ 8.8.0 (semver) Affected: 8.7.1 , ≤ 8.7.1 (semver) Affected: 8.7.0 , ≤ 8.7.0 (semver) Affected: 8.6.0 , ≤ 8.6.0 (semver) Affected: 8.5.0 , ≤ 8.5.0 (semver)

Credits

Hiroki Kurosawa Stefan Eissing

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-05-28T08:03:57.908Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
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          {
            "url": "http://www.openwall.com/lists/oss-security/2025/05/28/5"
          }
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        "title": "CVE Program Container"
      },
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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 4.8,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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            }
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          {
            "other": {
              "content": {
                "id": "CVE-2025-5025",
                "options": [
                  {
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                  },
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
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                "timestamp": "2025-05-30T16:19:34.842150Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-30T16:19:53.775Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.1",
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              "version": "8.12.1",
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              "lessThanOrEqual": "8.10.0",
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              "version": "8.10.0",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Hiroki Kurosawa"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Stefan Eissing"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-295 Improper Certificate Validation",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-28T06:29:51.915Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2025-5025.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2025-5025.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3153497"
        }
      ],
      "title": "No QUIC certificate pinning with wolfSSL"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2025-5025",
    "datePublished": "2025-05-28T06:29:51.915Z",
    "dateReserved": "2025-05-21T06:25:30.863Z",
    "dateUpdated": "2025-05-30T16:19:53.775Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2025-5399 (GCVE-0-2025-5399)

Vulnerability from cvelistv5 – Published: 2025-06-07 07:49 – Updated: 2025-06-09 13:20

Title

WebSocket endless loop

Summary

Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop. There is no other way for the application to escape or exit this loop other than killing the thread/process. This might be used to DoS libcurl-using application.

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-09 13:20 UTC

CWE

CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

curl CNA under the redhat root

CNA scorecard D 49/100 over 36 records in the last 180 days details

References

4 references

URL	Tags
https://curl.se/docs/CVE-2025-5399.json
https://curl.se/docs/CVE-2025-5399.html
https://hackerone.com/reports/3168039
http://www.openwall.com/lists/oss-security/2025/06/04/2

Impacted products

1 product

Vendor	Product	Version
curl	curl	Affected: 8.14.0 , ≤ 8.14.0 (semver) Affected: 8.13.0 , ≤ 8.13.0 (semver)

Credits

z2_ on hackerone z2_ on hackerone

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-06-07T08:05:07.254Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2025/06/04/2"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-5399",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-09T13:20:18.342977Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-09T13:20:29.843Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "z2_ on hackerone"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "z2_ on hackerone"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Due to a mistake in libcurl\u0027s WebSocket code, a malicious server can send a\nparticularly crafted packet which makes libcurl get trapped in an endless\nbusy-loop.\n\nThere is no other way for the application to escape or exit this loop other\nthan killing the thread/process.\n\nThis might be used to DoS libcurl-using application."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-07T07:49:09.370Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2025-5399.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2025-5399.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3168039"
        }
      ],
      "title": "WebSocket endless loop"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2025-5399",
    "datePublished": "2025-06-07T07:49:09.370Z",
    "dateReserved": "2025-05-31T15:02:27.226Z",
    "dateUpdated": "2025-06-09T13:20:29.843Z",
    "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.

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

SUSE-SU-2025:20675-1

CVE-2025-4947 (GCVE-0-2025-4947)

CVE-2025-5025 (GCVE-0-2025-5025)

CVE-2025-5399 (GCVE-0-2025-5399)

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Sightings

Nomenclature

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Related by attack behaviour