FKIE_CVE-2018-20020
Vulnerability from fkie_nvd - Published: 2018-12-19 16:29 - Updated: 2024-11-21 04:00
Severity ?
Summary
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| libvnc_project | libvncserver | * | |
| canonical | ubuntu_linux | 14.04 | |
| canonical | ubuntu_linux | 16.04 | |
| canonical | ubuntu_linux | 18.04 | |
| canonical | ubuntu_linux | 18.10 | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DEF1BF44-78B8-44E3-9A5A-29AB8111322B",
"versionEndExcluding": "0.9.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
"matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution"
},
{
"lang": "es",
"value": "LibVNC antes del commit con ID 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contiene una vulnerabilidad de escritura de memoria din\u00e1mica (heap) fuera de l\u00edmites en la estructura del c\u00f3digo del cliente VNC que puede resultar en la ejecuci\u00f3n remota de c\u00f3digo."
}
],
"id": "CVE-2018-20020",
"lastModified": "2024-11-21T04:00:46.163",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-12-19T16:29:00.373",
"references": [
{
"source": "vulnerability@kaspersky.com",
"tags": [
"Third Party Advisory"
],
"url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/"
},
{
"source": "vulnerability@kaspersky.com",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"
},
{
"source": "vulnerability@kaspersky.com",
"url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"
},
{
"source": "vulnerability@kaspersky.com",
"url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html"
},
{
"source": "vulnerability@kaspersky.com",
"url": "https://security.gentoo.org/glsa/201908-05"
},
{
"source": "vulnerability@kaspersky.com",
"url": "https://security.gentoo.org/glsa/202006-06"
},
{
"source": "vulnerability@kaspersky.com",
"tags": [
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],
"url": "https://usn.ubuntu.com/3877-1/"
},
{
"source": "vulnerability@kaspersky.com",
"url": "https://usn.ubuntu.com/4547-1/"
},
{
"source": "vulnerability@kaspersky.com",
"url": "https://usn.ubuntu.com/4547-2/"
},
{
"source": "vulnerability@kaspersky.com",
"url": "https://usn.ubuntu.com/4587-1/"
},
{
"source": "vulnerability@kaspersky.com",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2019/dsa-4383"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
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],
"url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/201908-05"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/202006-06"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3877-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/4547-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/4547-2/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/4587-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2019/dsa-4383"
}
],
"sourceIdentifier": "vulnerability@kaspersky.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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