Vulnerability-Lookup

CVE-2024-35313 (GCVE-0-2024-35313)

Vulnerability from cvelistv5 – Published: 2024-05-17 21:29 – Updated: 2025-03-27 14:31

Summary

In Tor Arti before 1.2.3, circuits sometimes incorrectly have a length of 3 (with full vanguards), aka TROVE-2024-004.

Severity ?

7.3 (High)


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

CWE

Assigner

mitre

References

URL

Tags

https://gitlab.torproject.org/tpo/core/arti/-/iss…

Show details on NVD website

JSON

To clipboard

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    "state": "PUBLISHED"
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cve-2024-35313

Vulnerability from osv_rustsec

Published

2024-05-15 12:00

Modified

2025-10-28 06:02

Summary

Tor path lengths too short when "full Vanguards" configured

Details

Description

When building anonymizing circuits to or from an onion service with full vanguards enabled, the circuit manager code would build the circuits with one hop too few.

Impact

This makes users of this code more vulnerable to some kinds of traffic analysis when they run or visit onion services.

Vulnerable configurations and use cases

Arti configured with "full vangaurds" is vulnerable.

Only users who make connections to Onion Services (Tor Hidden Services) are affected. Note, however, that when used as a browser proxy, malicious web pages can typically make such connections.

Mitigation

Preventing access to Tor Hidden Services will avoid the problem, with corresponding loss of functionality. This can be achieved in the Arti configuration file with:

[address_filter]
allow_onion_addrs = false

Changing the configuration (eg to turn off vanguards) reclassifies the behaviour as "as configured", but reduces security rather than improving it, so is not a mitigation.

Resolution

Rebuild arti (or other affected applications) with a fixed version of tor-circmgr: 0.18.1 or later.

The fixed tor-circmgr is on crates.io and available in the upstream git repository at signed tag arti-v1.2.3.

Note about older versions

Even though earlier versions are classified as "not affected", this is because in those versions the Vanguards feature is experimental, or absent. Downgrading worsens security, rather than improving it.

References

arti#1400: the ticket in the Arti bugtracker.
TROVE Tor Project vulnerability database.
arti#1409: the similar bug with the vanguards lite feature.

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "tor-circmgr",
        "purl": "pkg:cargo/tor-circmgr"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.18.0"
            },
            {
              "fixed": "0.18.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2024-35312",
    "CVE-2024-35313",
    "GHSA-9328-gcfq-p269",
    "GHSA-c96h-cxx6-rmg9",
    "TROVE-2024-004"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "## Description\n\nWhen building anonymizing circuits to or from an onion service with \nfull vanguards enabled, \nthe circuit manager code would build the circuits with one hop too few.\n\n## Impact\n\nThis makes users of this code more vulnerable to some kinds of traffic analysis\nwhen they run or visit onion services.\n\n## Vulnerable configurations and use cases\n\nArti configured with \"full vangaurds\" is vulnerable.\n\nOnly users who make connections to Onion Services\n(Tor Hidden Services) are affected.\nNote, however, that when used as a browser proxy,\nmalicious web pages can typically make such connections.\n\n## Mitigation\n\nPreventing access to Tor Hidden Services will avoid the problem,\nwith corresponding loss of functionality.\nThis can be achieved in the Arti configuration file with:\n\n```\n[address_filter]\nallow_onion_addrs = false\n```\n\nChanging the configuration (eg to turn off vanguards)\nreclassifies the behaviour as \"as configured\",\nbut reduces security rather than improving it,\nso is not a mitigation.\n\n## Resolution\n\nRebuild `arti` (or other affected applications)\nwith a fixed version of `tor-circmgr`:\n0.18.1 or later.\n\nThe fixed `tor-circmgr` is on crates.io and available in\n[the upstream git repository](https://gitlab.torproject.org/tpo/core/arti)\nat signed tag `arti-v1.2.3`.\n\n### Note about older versions\n\nEven though earlier versions are classified as \"not affected\",\nthis is because in those versions the Vanguards feature\nis experimental, or absent.\nDowngrading worsens security, rather than improving it.\n\n## References\n\n * [arti#1400](https://gitlab.torproject.org/tpo/core/arti/-/issues/1400):\n   the ticket in the Arti bugtracker.\n * [TROVE](https://gitlab.torproject.org/tpo/core/team/-/wikis/NetworkTeam/TROVE)\n   Tor Project vulnerability database.\n * [arti#1409](https://gitlab.torproject.org/tpo/core/arti/-/issues/1409):\n   the similar bug with the vanguards lite feature.",
  "id": "RUSTSEC-2024-0340",
  "modified": "2025-10-28T06:02:18Z",
  "published": "2024-05-15T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/tor-circmgr"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0340.html"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.torproject.org/tpo/core/arti/-/issues/1409"
    }
  ],
  "related": [
    "TROVE-2024-003"
  ],
  "severity": [],
  "summary": "Tor path lengths too short when \"full Vanguards\" configured"
}

cve-2024-35313

Vulnerability from osv_rustsec

Published

2024-05-15 12:00

Modified

2024-05-21 02:12

Summary

Tor path lengths too short when "Vanguards lite" configured

Details

Description

When building anonymizing circuits to or from an onion service with 'lite' vanguards (the default) enabled, the circuit manager code would build the circuits with one hop too few.

Impact

This makes users of this code more vulnerable to some kinds of traffic analysis when they run or visit onion services.

Vulnerable configurations and use cases

Arti configured with "vangaurds lite" is vulnerable; this is the default.

Only users who make connections to Onion Services (Tor Hidden Services) are affected. Note, however, that when used as a browser proxy, malicious web pages can typically make such connections.

Mitigation

Enable the "full vanguards" feature. This has some cost in terms of performance, reliability, and impact on the Tor Network.

(Arti configured with "full vanguards" has a similar bug, TROVE-2024-04, so this will not deliver the full incressed security of "full vanguards"; but the security level of affected versions of Arti configured with "full vanguards" still exceeds the intended security level of the "vanguards lite" configuration.)

Alternatively, preventing access to Tor Hidden Services will avoid the problem, with corresponding loss of functionality. This can be achieved in the Arti configuration file with:

[address_filter]
allow_onion_addrs = false

Resolution

Rebuild arti (or other affected applications) with a fixed version of tor-circmgr: 0.18.1 or later.

The fixed tor-circmgr is on crates.io and available in the upstream git repository at signed tag arti-v1.2.3.

Note about older versions

References

arti#1409: the ticket in the Arti bugtracker.
TROVE Tor Project vulnerability database.
arti#1400: the similar bug with the full vanguards feature.

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "tor-circmgr",
        "purl": "pkg:cargo/tor-circmgr"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.18.0"
            },
            {
              "fixed": "0.18.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2024-35312",
    "CVE-2024-35313",
    "GHSA-9328-gcfq-p269",
    "GHSA-c96h-cxx6-rmg9",
    "TROVE-2024-003"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "## Description\n\nWhen building anonymizing circuits to or from an onion service with \n\u0027lite\u0027 vanguards (the default) enabled, \nthe circuit manager code would build the circuits with one hop too few.\n\n## Impact\n\nThis makes users of this code more vulnerable to some kinds of traffic analysis\nwhen they run or visit onion services.\n\n## Vulnerable configurations and use cases\n\nArti configured with \"vangaurds lite\" is vulnerable;\nthis is the default.\n\nOnly users who make connections to Onion Services\n(Tor Hidden Services) are affected.\nNote, however, that when used as a browser proxy,\nmalicious web pages can typically make such connections.\n\n## Mitigation\n\nEnable the \"full vanguards\" feature.\nThis has some cost in terms of performance, reliability,\nand impact on the Tor Network.\n\n(Arti configured with \"full vanguards\" has a similar bug,\nTROVE-2024-04,\nso this will not deliver the full incressed security of \"full vanguards\";\nbut the security level of affected versions of Arti\nconfigured with \"full vanguards\" still exceeds\nthe intended security level of the \"vanguards lite\" configuration.)\n\nAlternatively,\npreventing access to Tor Hidden Services will avoid the problem,\nwith corresponding loss of functionality.\nThis can be achieved in the Arti configuration file with:\n\n```\n[address_filter]\nallow_onion_addrs = false\n```\n\n## Resolution\n\nRebuild `arti` (or other affected applications)\nwith a fixed version of `tor-circmgr`:\n0.18.1 or later.\n\nThe fixed `tor-circmgr` is on crates.io and available in\n[the upstream git repository](https://gitlab.torproject.org/tpo/core/arti)\nat signed tag `arti-v1.2.3`.\n\n### Note about older versions\n\nEven though earlier versions are classified as \"not affected\",\nthis is because in those versions the Vanguards feature\nis experimental, or absent.\nDowngrading worsens security, rather than improving it.\n\n## References\n\n * [arti#1409](https://gitlab.torproject.org/tpo/core/arti/-/issues/1409):\n   the ticket in the Arti bugtracker.\n * [TROVE](https://gitlab.torproject.org/tpo/core/team/-/wikis/NetworkTeam/TROVE)\n   Tor Project vulnerability database.\n * [arti#1400](https://gitlab.torproject.org/tpo/core/arti/-/issues/1400):\n   the similar bug with the full vanguards feature.",
  "id": "RUSTSEC-2024-0339",
  "modified": "2024-05-21T02:12:32Z",
  "published": "2024-05-15T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/tor-circmgr"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0339.html"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.torproject.org/tpo/core/arti/-/issues/1409"
    }
  ],
  "related": [
    "TROVE-2024-004"
  ],
  "severity": [],
  "summary": "Tor path lengths too short when \"Vanguards lite\" configured"
}

GHSA-C96H-CXX6-RMG9

Vulnerability from github – Published: 2024-05-18 00:30 – Updated: 2025-03-27 18:40

Summary

Tor path lengths too short when "full Vanguards" configured

Details

In Tor Arti before 1.2.3, circuits sometimes incorrectly have a length of 3 (with full vanguards), aka TROVE-2024-004.

Severity ?

5.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "tor-circmgr"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.18.0"
            },
            {
              "fixed": "0.18.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.18.0"
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "arti"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.2.2"
            },
            {
              "fixed": "1.2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-35313"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-130",
      "CWE-754"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-05-20T16:37:19Z",
    "nvd_published_at": "2024-05-17T22:15:07Z",
    "severity": "MODERATE"
  },
  "details": "In Tor Arti before 1.2.3, circuits sometimes incorrectly have a length of 3 (with full vanguards), aka TROVE-2024-004.",
  "id": "GHSA-c96h-cxx6-rmg9",
  "modified": "2025-03-27T18:40:05Z",
  "published": "2024-05-18T00:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35313"
    },
    {
      "type": "PACKAGE",
      "url": "https://gitlab.torproject.org/tpo/core/arti"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.torproject.org/tpo/core/arti/-/blob/main/CHANGELOG.md#arti-123-15-may-2024"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.torproject.org/tpo/core/arti/-/commit/1a89d5c9659d799a84dd3ff00fae530f5c8ba280"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.torproject.org/tpo/core/arti/-/issues/1400"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.torproject.org/tpo/core/arti/-/issues/1409"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.torproject.org/tpo/core/team/-/wikis/NetworkTeam/TROVE"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0339.html"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2024-0340.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Tor path lengths too short when \"full Vanguards\" configured"
}

FKIE_CVE-2024-35313

Vulnerability from fkie_nvd - Published: 2024-05-17 22:15 - Updated: 2025-03-27 15:15

Severity ?

7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Summary

In Tor Arti before 1.2.3, circuits sometimes incorrectly have a length of 3 (with full vanguards), aka TROVE-2024-004.

References

	URL	Tags
	cve@mitre.org	https://gitlab.torproject.org/tpo/core/arti/-/issues/1400
	af854a3a-2127-422b-91ae-364da2661108	https://gitlab.torproject.org/tpo/core/arti/-/issues/1400

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Tor Arti before 1.2.3, circuits sometimes incorrectly have a length of 3 (with full vanguards), aka TROVE-2024-004."
    },
    {
      "lang": "es",
      "value": " En Tor Arti anterior a 1.2.3, los circuitos a veces tienen incorrectamente una longitud de 3 (con vanguardias completas), tambi\u00e9n conocido como TROVE-2024-004."
    }
  ],
  "id": "CVE-2024-35313",
  "lastModified": "2025-03-27T15:15:52.663",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "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:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2024-05-17T22:15:07.453",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://gitlab.torproject.org/tpo/core/arti/-/issues/1400"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://gitlab.torproject.org/tpo/core/arti/-/issues/1400"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-130"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2024-35313 (GCVE-0-2024-35313)

cve-2024-35313

Vulnerability from osv_rustsec

Description

Impact

Vulnerable configurations and use cases

Mitigation

Resolution

Note about older versions

References

cve-2024-35313

Vulnerability from osv_rustsec

Description

Impact

Vulnerable configurations and use cases

Mitigation

Resolution

Note about older versions

References

GHSA-C96H-CXX6-RMG9

FKIE_CVE-2024-35313

Tags

Sightings

Nomenclature