Vulnerability-Lookup

CVE-2024-6197 (GCVE-0-2024-6197)

Vulnerability from cvelistv5 – Published: 2024-07-24 07:29 – Updated: 2025-02-13 17:54

Title

freeing stack buffer in utf8asn1str

Summary

libcurl's ASN1 parser has this utf8asn1str() function used for parsing an ASN.1 UTF-8 string. Itcan detect an invalid field and return error. Unfortunately, when doing so it also invokes `free()` on a 4 byte localstack buffer. Most modern malloc implementations detect this error and immediately abort. Some however accept the input pointer and add that memory to its list of available chunks. This leads to the overwriting of nearby stack memory. The content of the overwrite is decided by the `free()` implementation; likely to be memory pointers and a set of flags. The most likely outcome of exploting this flaw is a crash, although it cannot be ruled out that more serious results can be had in special circumstances.

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: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-07-24 18:42 UTC

CWE

CWE-590 Free of Memory not on the Heap

Assigner

curl redhat root

References

6 references

URL	Tags
https://curl.se/docs/CVE-2024-6197.json
https://curl.se/docs/CVE-2024-6197.html
https://hackerone.com/reports/2559516
http://www.openwall.com/lists/oss-security/2024/07/24/1
http://www.openwall.com/lists/oss-security/2024/07/24/5
https://security.netapp.com/advisory/ntap-2024112…

Impacted products

2 products

Vendor	Product	Version	CPE status
curl	curl	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)	guessed
curl	curl	Affected: 8.6.0 , ≤ 8.8.0 (custom) cpe:2.3:a:curl:curl::::::::

Credits

z2_ z2_

Show details on NVD website

JSON

To clipboard

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            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-07-24T07:29:50.003Z",
            "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
            "shortName": "curl"
          },
          "references": [
            {
              "name": "json",
              "url": "https://curl.se/docs/CVE-2024-6197.json"
            },
            {
              "name": "www",
              "url": "https://curl.se/docs/CVE-2024-6197.html"
            },
            {
              "name": "issue",
              "url": "https://hackerone.com/reports/2559516"
            },
            {
              "url": "http://www.openwall.com/lists/oss-security/2024/07/24/1"
            },
            {
              "url": "http://www.openwall.com/lists/oss-security/2024/07/24/5"
            }
          ],
          "title": "freeing stack buffer in utf8asn1str"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "assignerShortName": "curl",
        "cveId": "CVE-2024-6197",
        "datePublished": "2024-07-24T07:29:50.003Z",
        "dateReserved": "2024-06-20T07:20:43.202Z",
        "dateUpdated": "2024-11-29T12:04:44.300Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

NCSC-2024-0392

Vulnerability from csaf_ncscnl - Published: 2024-10-08 19:55 - Updated: 2024-10-08 19:55

Summary

Kwetsbaarheden verholpen in Microsoft Windows

Scope

95 vulnerabilities in this advisory, including CVE-2024-6197.

CVE-2024-6197

Open the full advisory

OPENSUSE-SU-2024:14225-1

Vulnerability from csaf_opensuse - Published: 2024-07-30 00:00 - Updated: 2024-07-30 00:00

Summary

curl-8.9.0-1.1 on GA media

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2024-6197.

CVE-2024-6197

7.5 (High)


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

Recommended: 32 products

Open the full advisory

SSA-089022

Vulnerability from csaf_siemens - Published: 2026-01-28 00:00 - Updated: 2026-02-24 00:00

Summary

SSA-089022: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.3

Scope

51 vulnerabilities in this advisory, including CVE-2024-6197.

CVE-2024-6197

7.5 (High)


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

Known affected: 16 products

https://support.industry.siemens.com/cs/ww/en/view/109997626/

Open the full advisory

SSA-355557

Vulnerability from csaf_siemens - Published: 2025-08-12 00:00 - Updated: 2026-02-24 00:00

Summary

SSA-355557: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.2

Scope

486 vulnerabilities in this advisory, including CVE-2024-6197.

CVE-2024-6197

7.5 (High)


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

Known affected: 3 products

https://support.industry.siemens.com/cs/ww/en/view/109988839/

Open the full advisory

SUSE-SU-2024:2784-1

Vulnerability from csaf_suse - Published: 2024-08-06 12:58 - Updated: 2024-08-06 12:58

Summary

Security update for curl

Severity

Important

Scope

2 vulnerabilities in this advisory, including CVE-2024-6197.

CVE-2024-6197

7.5 (High)


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

Recommended: 27 products

Open the full advisory

SUSE-SU-2025:20029-1

Vulnerability from csaf_suse - Published: 2025-02-03 08:51 - Updated: 2025-02-03 08:51

Summary

Security update for curl

Severity

Moderate

Scope

6 vulnerabilities in this advisory, including CVE-2024-6197.

CVE-2024-6197

7.5 (High)


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

Recommended: 6 products

Open the full advisory

UBUNTU-CVE-2024-6197 (CVE-2024-6197)

Vulnerability from osv_ubuntu – Published: 2024-07-24 00:00 – Updated: 2025-07-16 05:12 – Source website

Withdrawn 2025-07-18

Details

libcurl's ASN1 parser has this utf8asn1str() function used for parsing an ASN.1 UTF-8 string. Itcan detect an invalid field and return error. Unfortunately, when doing so it also invokes free() on a 4 byte localstack buffer. Most modern malloc implementations detect this error and immediately abort. Some however accept the input pointer and add that memory to its list of available chunks. This leads to the overwriting of nearby stack memory. The content of the overwrite is decided by the free() implementation; likely to be memory pointers and a set of flags. The most likely outcome of exploting this flaw is a crash, although it cannot be ruled out that more serious results can be had in special circumstances.

Severity

7.5 (High)


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

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2024-6197	REPORT
	https://www.cve.org/CVERecord?id=CVE-2024-6197	REPORT
	https://curl.se/docs/CVE-2024-6197.html	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "curl",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "curl-dbgsym",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl3-gnutls",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl3-gnutls-dbgsym",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl3-nss",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl3-nss-dbgsym",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl4",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl4-dbgsym",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl4-doc",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl4-gnutls-dev",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl4-nss-dev",
            "binary_version": "7.68.0-1ubuntu2.22"
          },
          {
            "binary_name": "libcurl4-openssl-dev",
            "binary_version": "7.68.0-1ubuntu2.22"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "curl",
        "purl": "pkg:deb/ubuntu/curl@7.68.0-1ubuntu2.22?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.68.0-1ubuntu2.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.65.3-1ubuntu3",
        "7.65.3-1ubuntu4",
        "7.66.0-1ubuntu1",
        "7.67.0-2ubuntu1",
        "7.68.0-1ubuntu1",
        "7.68.0-1ubuntu2",
        "7.68.0-1ubuntu2.1",
        "7.68.0-1ubuntu2.2",
        "7.68.0-1ubuntu2.4",
        "7.68.0-1ubuntu2.5",
        "7.68.0-1ubuntu2.6",
        "7.68.0-1ubuntu2.7",
        "7.68.0-1ubuntu2.10",
        "7.68.0-1ubuntu2.11",
        "7.68.0-1ubuntu2.12",
        "7.68.0-1ubuntu2.13",
        "7.68.0-1ubuntu2.14",
        "7.68.0-1ubuntu2.15",
        "7.68.0-1ubuntu2.16",
        "7.68.0-1ubuntu2.18",
        "7.68.0-1ubuntu2.19",
        "7.68.0-1ubuntu2.20",
        "7.68.0-1ubuntu2.21"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "curl",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "curl-dbgsym",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl3-gnutls",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl3-gnutls-dbgsym",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl3-nss",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl3-nss-dbgsym",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl4",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl4-dbgsym",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl4-doc",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl4-gnutls-dev",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl4-nss-dev",
            "binary_version": "7.81.0-1ubuntu1.16"
          },
          {
            "binary_name": "libcurl4-openssl-dev",
            "binary_version": "7.81.0-1ubuntu1.16"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "curl",
        "purl": "pkg:deb/ubuntu/curl@7.81.0-1ubuntu1.16?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.81.0-1ubuntu1.16"
            }
          ],
          "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"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "curl",
            "binary_version": "8.5.0-2ubuntu10.1"
          },
          {
            "binary_name": "curl-dbgsym",
            "binary_version": "8.5.0-2ubuntu10.1"
          },
          {
            "binary_name": "libcurl3t64-gnutls",
            "binary_version": "8.5.0-2ubuntu10.1"
          },
          {
            "binary_name": "libcurl3t64-gnutls-dbgsym",
            "binary_version": "8.5.0-2ubuntu10.1"
          },
          {
            "binary_name": "libcurl4-doc",
            "binary_version": "8.5.0-2ubuntu10.1"
          },
          {
            "binary_name": "libcurl4-gnutls-dev",
            "binary_version": "8.5.0-2ubuntu10.1"
          },
          {
            "binary_name": "libcurl4-openssl-dev",
            "binary_version": "8.5.0-2ubuntu10.1"
          },
          {
            "binary_name": "libcurl4t64",
            "binary_version": "8.5.0-2ubuntu10.1"
          },
          {
            "binary_name": "libcurl4t64-dbgsym",
            "binary_version": "8.5.0-2ubuntu10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "curl",
        "purl": "pkg:deb/ubuntu/curl@8.5.0-2ubuntu10.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.5.0-2ubuntu10.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.2.1-1ubuntu3",
        "8.2.1-1ubuntu3.1",
        "8.4.0-2ubuntu1",
        "8.5.0-2ubuntu1",
        "8.5.0-2ubuntu2",
        "8.5.0-2ubuntu8",
        "8.5.0-2ubuntu9",
        "8.5.0-2ubuntu10"
      ]
    }
  ],
  "aliases": [],
  "details": "libcurl\u0027s ASN1 parser has this utf8asn1str() function used for parsing an ASN.1 UTF-8 string. Itcan detect an invalid field and return error. Unfortunately, when doing so it also invokes `free()` on a 4 byte localstack buffer.  Most modern malloc implementations detect this error and immediately abort. Some however accept the input pointer and add that memory to its list of available chunks. This leads to the overwriting of nearby stack memory. The content of the overwrite is decided by the `free()` implementation; likely to be memory pointers and a set of flags. The most likely outcome of exploting this flaw is a crash, although it cannot be ruled out that more serious results can be had in special circumstances.",
  "id": "UBUNTU-CVE-2024-6197",
  "modified": "2025-07-16T05:12:07Z",
  "published": "2024-07-24T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-6197"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-6197"
    },
    {
      "type": "REPORT",
      "url": "https://curl.se/docs/CVE-2024-6197.html"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-6197"
  ],
  "withdrawn": "2025-07-18T16:56:19Z"
}

WID-SEC-W-2024-1697

Vulnerability from csaf_certbund - Published: 2024-07-23 22:00 - Updated: 2025-11-04 23:00

Summary

cURL: Mehrere Schwachstellen ermöglichen Denial of Service und Offenlegung von Informationen

Severity

Mittel

Scope

2 vulnerabilities in this advisory, including CVE-2024-6197.

CVE-2024-6197

Known affected: 8 products

Open the full advisory

WID-SEC-W-2024-3121

Vulnerability from csaf_certbund - Published: 2024-10-08 22:00 - Updated: 2024-12-22 23:00

Summary

Microsoft Windows: Mehrere Schwachstellen

Severity

Hoch

Scope

94 vulnerabilities in this advisory, including CVE-2024-6197.

CVE-2024-6197

In Microsoft Windows Server, Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows, Microsoft Windows Server 2022 und Microsoft Windows 11 bestehen mehrere Schwachstellen. Ein Angreifer kann diese Schwachstellen ausnutzen, um erhöhte Rechte zu erlangen, einschließlich Rechte auf SYSTEM- Level, um beliebigen Code auszuführen, um Sicherheitsmaßnahmen zu umgehen, um vertrauliche Informationen offenzulegen und um einen Denial of Service Zustand zu erzeugen. Für die Ausnutzung einiger dieser Schwachstellen muss ein Angreifer vor der Ausnutzung zusätzliche Maßnahmen ergreifen, um die Zielumgebung vorzubereiten, wie z. B. das Gewinnen einer Race-Bedingung, oder er muss sich einfach in der Nähe des Zielsystems befinden. Viele der Schwachstellen erfordern eine Form von erhöhten Rechten, um erfolgreich ausgenutzt werden zu können. Mehrere Schwachstellen erfordern eine Benutzerinteraktion, um erfolgreich ausgenutzt werden zu können, z. B. das Öffnen von bösartigen Eingabedateien, Ordnern oder Verzeichnissen.

Known affected: 19 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-2024-6197 (GCVE-0-2024-6197)

UBUNTU-CVE-2024-6197 (CVE-2024-6197)

Tags

Sightings

Nomenclature

Related by attack behaviour