Vulnerability-Lookup

ALSA-2024:3846

Vulnerability from osv_almalinux – Published: 2024-06-11 00:00 – Updated: 2024-06-13 13:10 – Source website

Summary

Moderate: python-idna security update

Details

The hsakmt packages include a thunk library for AMD's Heterogeneous System Architecture (HSA) Linux kernel driver (amdkfd).

Security Fix(es):

python-idna: potential DoS via resource consumption via specially crafted inputs to idna.encode() (CVE-2024-3651)

References

URL

Type

	https://access.redhat.com/errata/RHSA-2024:3846	ADVISORY
	https://access.redhat.com/security/cve/CVE-2024-3651	REPORT
	https://bugzilla.redhat.com/2274779	REPORT
	https://errata.almalinux.org/9/ALSA-2024-3846.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3-idna"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.10-7.el9_4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The hsakmt packages include a thunk library for AMD\u0027s Heterogeneous System Architecture (HSA) Linux kernel driver (amdkfd).\n\nSecurity Fix(es):\n\n* python-idna: potential DoS via resource consumption via specially crafted inputs to idna.encode() (CVE-2024-3651)",
  "id": "ALSA-2024:3846",
  "modified": "2024-06-13T13:10:39Z",
  "published": "2024-06-11T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2024:3846"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-3651"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2274779"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2024-3846.html"
    }
  ],
  "related": [
    "CVE-2024-3651"
  ],
  "summary": "Moderate: python-idna security update"
}

CVE-2024-3651 (GCVE-0-2024-3651)

Vulnerability from cvelistv5 – Published: 2024-07-07 17:22 – Updated: 2025-11-04 22:06

Title

Denial of Service via Quadratic Complexity in kjd/idna

Summary

A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6. The issue arises from the function's handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the `idna.encode()` function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size.

Severity

6.2 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-07-07 19:07 UTC

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

@huntr_ai mitre root Scorecard

References

7 references

URL	Tags
https://huntr.com/bounties/93d78d07-d791-4b39-a84…
https://github.com/kjd/idna/commit/1d365e17e10d72…
https://lists.debian.org/debian-lts-announce/2024…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

1 product

Vendor	Product	Version
kjd	kjd/idna	Affected: unspecified , < 3.7 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-3651",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-07T19:07:43.737156Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-07T19:07:50.996Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T22:06:20.751Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://huntr.com/bounties/93d78d07-d791-4b39-a845-cbfabc44aadb"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/kjd/idna/commit/1d365e17e10d72d0b7876316fc7b9ca0eebdd38d"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00006.html"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F2S5E23N6E52S46KGNYTDFB75LOC4N4D/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S5IDLLD2IKSIVRBSLB34WTSYGLMWUFWF/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ULSC7HBJKXB3BZV367WM5BR6DFEC4Z43/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4YQUPYH3SVZ5GFF2CDQ55FCM575AZTF2/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kjd/idna",
          "vendor": "kjd",
          "versions": [
            {
              "lessThan": "3.7",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6. The issue arises from the function\u0027s handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the `idna.encode()` function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333 Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-15T12:49:38.011Z",
        "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "shortName": "@huntr_ai"
      },
      "references": [
        {
          "url": "https://huntr.com/bounties/93d78d07-d791-4b39-a845-cbfabc44aadb"
        },
        {
          "url": "https://github.com/kjd/idna/commit/1d365e17e10d72d0b7876316fc7b9ca0eebdd38d"
        }
      ],
      "source": {
        "advisory": "93d78d07-d791-4b39-a845-cbfabc44aadb",
        "discovery": "EXTERNAL"
      },
      "title": "Denial of Service via Quadratic Complexity in kjd/idna"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
    "assignerShortName": "@huntr_ai",
    "cveId": "CVE-2024-3651",
    "datePublished": "2024-07-07T17:22:10.032Z",
    "dateReserved": "2024-04-10T23:50:44.569Z",
    "dateUpdated": "2025-11-04T22:06:20.751Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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

ALSA-2024:3846

CVE-2024-3651 (GCVE-0-2024-3651)

Tags

Sightings

Nomenclature

Related by attack behaviour