FKIE_CVE-2015-1799
Vulnerability from fkie_nvd - Published: 2015-04-08 10:59 - Updated: 2026-06-17 00:23
Severity
Summary
The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer.
References
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E538FCAE-3E2C-4EA8-A74F-ABF47652C15C",
"versionEndIncluding": "4.2.7p444",
"vulnerable": true
}
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"negate": false,
"operator": "OR"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer."
},
{
"lang": "es",
"value": "La caracter\u00edstica symmetric-key en la funci\u00f3n receive en ntp_proto.c en ntpd en NTP 3.x y 4.x anterior a 4.2.8p2 realiza actualizaciones de las variables de estados al recibir ciertos paquetes inv\u00e1lidos, lo que facilita a atacantes man-in-the-middle causar una denegaci\u00f3n de servicio (perdida de sincronizaci\u00f3n) mediante la falsificaci\u00f3n de la direcci\u00f3n del IP de fuente de un par."
}
],
"id": "CVE-2015-1799",
"lastModified": "2026-06-17T00:23:01.473",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:A/AC:M/Au:N/C:N/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 5.5,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2015-04-08T10:59:05.717",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://bugs.ntp.org/show_bug.cgi?id=2781"
},
{
"source": "secalert@redhat.com",
"url": "http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html"
},
{
"source": "secalert@redhat.com",
"url": "http://marc.info/?l=bugtraq\u0026m=143213867103400\u0026w=2"
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{
"source": "secalert@redhat.com",
"url": "http://marc.info/?l=bugtraq\u0026m=145750740530849\u0026w=2"
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{
"source": "secalert@redhat.com",
"url": "http://rhn.redhat.com/errata/RHSA-2015-1459.html"
},
{
"source": "secalert@redhat.com",
"url": "http://support.apple.com/kb/HT204942"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities"
},
{
"source": "secalert@redhat.com",
"url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150408-ntpd"
},
{
"source": "secalert@redhat.com",
"url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=38275"
},
{
"source": "secalert@redhat.com",
"url": "http://www.debian.org/security/2015/dsa-3222"
},
{
"source": "secalert@redhat.com",
"url": "http://www.debian.org/security/2015/dsa-3223"
},
{
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"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/374268"
},
{
"source": "secalert@redhat.com",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:202"
},
{
"source": "secalert@redhat.com",
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html"
},
{
"source": "secalert@redhat.com",
"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securityfocus.com/bid/73950"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securitytracker.com/id/1032031"
},
{
"source": "secalert@redhat.com",
"url": "http://www.ubuntu.com/usn/USN-2567-1"
},
{
"source": "secalert@redhat.com",
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10114"
},
{
"source": "secalert@redhat.com",
"url": "https://security.gentoo.org/glsa/201509-01"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://bugs.ntp.org/show_bug.cgi?id=2781"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=bugtraq\u0026m=143213867103400\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=bugtraq\u0026m=145750740530849\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2015-1459.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://support.apple.com/kb/HT204942"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150408-ntpd"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=38275"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2015/dsa-3222"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2015/dsa-3223"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/374268"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:202"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/73950"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id/1032031"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.ubuntu.com/usn/USN-2567-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10114"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/201509-01"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-17"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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- 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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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.
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.
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Related by attack behaviour
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