fkie_cve-2018-0491
Vulnerability from fkie_nvd
Published
2018-03-05 15:29
Modified
2024-11-21 03:38
Severity ?
Summary
A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| torproject | tor | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1E3C7B44-DBC7-4D14-94F9-0DC25C1167EE",
"versionEndExcluding": "0.3.2.10",
"versionStartIncluding": "0.3.2.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list."
},
{
"lang": "es",
"value": "Se ha descubierto un problema de uso de memoria previamente liberada en Tor, en versiones 0.3.2.x anteriores a la 0.3.2.10. Permite que atacantes remotos provoquen una denegaci\u00f3n de servicio (cierre inesperado del relevo) debido a que la implementaci\u00f3n KIST permite que un canal se a\u00f1ada m\u00e1s de una vez en la lista de pendientes."
}
],
"id": "CVE-2018-0491",
"lastModified": "2024-11-21T03:38:20.637",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": true,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-03-05T15:29:00.270",
"references": [
{
"source": "security@debian.org",
"tags": [
"Vendor Advisory"
],
"url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915"
},
{
"source": "security@debian.org",
"tags": [
"Issue Tracking",
"Mitigation",
"Vendor Advisory"
],
"url": "https://trac.torproject.org/projects/tor/ticket/24700"
},
{
"source": "security@debian.org",
"tags": [
"Issue Tracking",
"Patch",
"Vendor Advisory"
],
"url": "https://trac.torproject.org/projects/tor/ticket/25117"
},
{
"source": "security@debian.org",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"url": "https://www.exploit-db.com/exploits/44994/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Mitigation",
"Vendor Advisory"
],
"url": "https://trac.torproject.org/projects/tor/ticket/24700"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch",
"Vendor Advisory"
],
"url": "https://trac.torproject.org/projects/tor/ticket/25117"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"url": "https://www.exploit-db.com/exploits/44994/"
}
],
"sourceIdentifier": "security@debian.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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