Vulnerability-Lookup

CVE-2024-11738 (GCVE-0-2024-11738)

Vulnerability from cvelistv5 – Published: 2024-12-06 14:54 – Updated: 2025-11-20 18:22

Title

Rustls: rustls network-reachable panic in `acceptor::accept`

Summary

A flaw was found in Rustls 0.23.13 and related APIs. This vulnerability allows denial of service (panic) via a fragmented TLS ClientHello message.

Severity

5.3 (Medium)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-12-06 17:45 UTC

CWE

CWE-248 - Uncaught Exception

Assigner

redhat redhat root

References

6 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2024-11738	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2328732	issue-trackingx_refsource_REDHAT
https://github.com/advisories/GHSA-qg5g-gv98-5ffh
https://github.com/rustls/rustls
https://github.com/rustls/rustls/issues/2227
https://rustsec.org/advisories/RUSTSEC-2024-0399.html

Impacted products

2 products

Vendor	Product	Version	CPE status
		Affected: 0.23.13 , < 0.23.18 (semver)
Red Hat	Red Hat Trusted Artifact Signer	cpe:/a:redhat:trusted_artifact_signer:1

Date Public

2024-11-25 16:57

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2024-11738

Vulnerability from fkie_nvd - Published: 2024-12-06 15:15 - Updated: 2026-06-17 06:58

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

A flaw was found in Rustls 0.23.13 and related APIs. This vulnerability allows denial of service (panic) via a fragmented TLS ClientHello message.

References

URL	Tags
secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2024-11738	Vendor Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2328732	Vendor Advisory
secalert@redhat.com	https://github.com/advisories/GHSA-qg5g-gv98-5ffh	Third Party Advisory
secalert@redhat.com	https://github.com/rustls/rustls	Product
secalert@redhat.com	https://github.com/rustls/rustls/issues/2227	Exploit, Issue Tracking, Vendor Advisory
secalert@redhat.com	https://rustsec.org/advisories/RUSTSEC-2024-0399.html	Vendor Advisory

Impacted products

	Vendor	Product	Version
	rustls_project	rustls	0.23.13

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://github.com/rustls/rustls",
          "defaultStatus": "unaffected",
          "packageName": "rustls",
          "versions": [
            {
              "lessThan": "0.23.18",
              "status": "affected",
              "version": "0.23.13",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:trusted_artifact_signer:1"
          ],
          "defaultStatus": "unaffected",
          "packageName": "rhtas/tuffer-rhel9",
          "product": "Red Hat Trusted Artifact Signer",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:trusted_artifact_signer:1"
          ],
          "defaultStatus": "unaffected",
          "packageName": "rhtas/tuftool-rhel9",
          "product": "Red Hat Trusted Artifact Signer",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:rustls_project:rustls:0.23.13:*:*:*:*:*:*:*",
              "matchCriteriaId": "B6038A32-4F35-44E0-96AE-4292681A27C0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Rustls 0.23.13 and related APIs. This vulnerability allows denial of service (panic) via a fragmented TLS ClientHello message."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en Rustls 0.23.13 y API relacionadas. Esta vulnerabilidad permite la denegaci\u00f3n de servicio (p\u00e1nico) a trav\u00e9s de un mensaje ClientHello de TLS fragmentado."
    }
  ],
  "id": "CVE-2024-11738",
  "lastModified": "2026-06-17T06:58:20.810",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "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:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-11738",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-12-06T17:45:01.886756Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-12-06T15:15:07.723",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://access.redhat.com/security/cve/CVE-2024-11738"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2328732"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/advisories/GHSA-qg5g-gv98-5ffh"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/rustls/rustls"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://github.com/rustls/rustls/issues/2227"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0399.html"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-248"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}

MSRC_CVE-2024-11738

Vulnerability from csaf_microsoft - Published: 2024-12-02 00:00 - Updated: 2026-02-21 02:21

Summary

Rustls: rustls network-reachable panic in `acceptor::accept`

Scope

1 vulnerability in this advisory, including CVE-2024-11738.

CVE-2024-11738

5.3 (Medium)


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

Fixed: 2 products Known affected: 2 products Known not affected: 1 product

https://learn.microsoft.com/en-us/azure/azure-linux/tutoria…

Open the full advisory

OPENSUSE-SU-2024:14539-1

Vulnerability from csaf_opensuse - Published: 2024-12-03 00:00 - Updated: 2024-12-03 00:00

Summary

himmelblau-0.7.7+git.0.b48d0bb-1.1 on GA media

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2024-11738.

CVE-2024-11738

5.9 (Medium)


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

Recommended: 20 products

Open the full advisory

RUSTSEC-2024-0399 (CVE-2024-11738)

Vulnerability from osv_rustsec – Published: 2024-11-22 12:00 – Updated: 2025-10-28 06:02 – Source website

Summary

rustls network-reachable panic in `Acceptor::accept`

Details

A bug introduced in rustls 0.23.13 leads to a panic if the received TLS ClientHello is fragmented. Only servers that use rustls::server::Acceptor::accept() are affected.

Servers that use tokio-rustls's LazyConfigAcceptor API are affected.

Servers that use tokio-rustls's TlsAcceptor API are not affected.

Servers that use rustls-ffi's rustls_acceptor_accept API are affected.

References

URL

Type

	https://crates.io/crates/rustls	PACKAGE
	https://rustsec.org/advisories/RUSTSEC-2024-0399.html	ADVISORY
	https://github.com/rustls/rustls/issues/2227	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "rustls",
        "purl": "pkg:cargo/rustls"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.23.0"
            },
            {
              "fixed": "0.23.0"
            },
            {
              "introduced": "0.23.13"
            },
            {
              "fixed": "0.23.18"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2024-11738",
    "GHSA-qg5g-gv98-5ffh"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "A bug introduced in rustls 0.23.13 leads to a panic if the received\nTLS ClientHello is fragmented.  Only servers that use\n`rustls::server::Acceptor::accept()` are affected.\n\nServers that use `tokio-rustls`\u0027s `LazyConfigAcceptor` API are affected.\n\nServers that use `tokio-rustls`\u0027s `TlsAcceptor` API are not affected.\n\nServers that use `rustls-ffi`\u0027s `rustls_acceptor_accept` API are affected.",
  "id": "RUSTSEC-2024-0399",
  "modified": "2025-10-28T06:02:18Z",
  "published": "2024-11-22T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/rustls"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0399.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rustls/rustls/issues/2227"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "rustls network-reachable panic in `Acceptor::accept`"
}

SUSE-SU-2026:1361-1

Vulnerability from csaf_suse - Published: 2026-04-15 14:14 - Updated: 2026-04-15 14:14

Summary

Security update for himmelblau

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2024-11738.

CVE-2024-11738

5.9 (Medium)


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

Recommended: 7 products

Open the full advisory

UBUNTU-CVE-2024-11738 (CVE-2024-11738)

Vulnerability from osv_ubuntu – Published: 2024-12-06 15:15 – Updated: 2026-05-20 15:07 – Source website

Details

A flaw was found in Rustls 0.23.13 and related APIs. This vulnerability allows denial of service (panic) via a fragmented TLS ClientHello message.

Severity

5.3 (Medium)


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

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-2024-11738	REPORT
	https://www.cve.org/CVERecord?id=CVE-2024-11738	REPORT
	https://rustsec.org/advisories/RUSTSEC-2024-0399.html	REPORT
	https://github.com/rustls/rustls/issues/2227	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-rustls-dev",
            "binary_version": "0.21.10-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "rust-rustls",
        "purl": "pkg:deb/ubuntu/rust-rustls@0.21.10-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.21.6-3",
        "0.21.7-1",
        "0.21.9-1",
        "0.21.10-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-rustls-dev",
            "binary_version": "0.23.26+ds-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "rust-rustls",
        "purl": "pkg:deb/ubuntu/rust-rustls@0.23.26+ds-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.23.25+ds-1",
        "0.23.26+ds-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-rustls-dev",
            "binary_version": "0.23.36+ds-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "rust-rustls",
        "purl": "pkg:deb/ubuntu/rust-rustls@0.23.36+ds-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.23.26+ds-1",
        "0.23.33+ds-3build2",
        "0.23.35+ds-1",
        "0.23.35+ds-1build1",
        "0.23.36+ds-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in Rustls 0.23.13 and related APIs. This vulnerability allows denial of service (panic) via a fragmented TLS ClientHello message.",
  "id": "UBUNTU-CVE-2024-11738",
  "modified": "2026-05-20T15:07:30Z",
  "published": "2024-12-06T15:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-11738"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-11738"
    },
    {
      "type": "REPORT",
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0399.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rustls/rustls/issues/2227"
    }
  ],
  "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:L",
      "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-2024-11738"
  ]
}

WID-SEC-W-2025-0686

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

Summary

IBM DataPower Gateway: Mehrere Schwachstellen

Severity

Mittel

Scope

2 vulnerabilities in this advisory, including CVE-2024-11738.

CVE-2024-11738

Known affected: 3 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-2024-11738 (GCVE-0-2024-11738)

FKIE_CVE-2024-11738

MSRC_CVE-2024-11738

OPENSUSE-SU-2024:14539-1

RUSTSEC-2024-0399 (CVE-2024-11738)

SUSE-SU-2026:1361-1

UBUNTU-CVE-2024-11738 (CVE-2024-11738)

WID-SEC-W-2025-0686

Tags

Sightings

Nomenclature

Related by attack behaviour