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vuln-ubuntu/data/osv/usn/USN-3096-1.json
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{
"schema_version": "1.7.0",
"id": "USN-3096-1",
"summary": "ntp vulnerabilities",
"details": "Aanchal Malhotra discovered that NTP incorrectly handled authenticated\nbroadcast mode. A remote attacker could use this issue to perform a replay\nattack. (CVE-2015-7973)\n\nMatt Street discovered that NTP incorrectly verified peer associations of\nsymmetric keys. A remote attacker could use this issue to perform an\nimpersonation attack. (CVE-2015-7974)\n\nJonathan Gardner discovered that the NTP ntpq utility incorrectly handled\nmemory. An attacker could possibly use this issue to cause ntpq to crash,\nresulting in a denial of service. This issue only affected Ubuntu 16.04\nLTS. (CVE-2015-7975)\n\nJonathan Gardner discovered that the NTP ntpq utility incorrectly handled\ndangerous characters in filenames. An attacker could possibly use this\nissue to overwrite arbitrary files. (CVE-2015-7976)\n\nStephen Gray discovered that NTP incorrectly handled large restrict lists.\nAn attacker could use this issue to cause NTP to crash, resulting in a\ndenial of service. (CVE-2015-7977, CVE-2015-7978)\n\nAanchal Malhotra discovered that NTP incorrectly handled authenticated\nbroadcast mode. A remote attacker could use this issue to cause NTP to\ncrash, resulting in a denial of service. (CVE-2015-7979)\n\nJonathan Gardner discovered that NTP incorrectly handled origin timestamp\nchecks. A remote attacker could use this issue to spoof peer servers.\n(CVE-2015-8138)\n\nJonathan Gardner discovered that the NTP ntpq utility did not properly\nhandle certain incorrect values. An attacker could possibly use this issue\nto cause ntpq to hang, resulting in a denial of service. (CVE-2015-8158)\n\nIt was discovered that the NTP cronjob incorrectly cleaned up the\nstatistics directory. A local attacker could possibly use this to escalate\nprivileges. (CVE-2016-0727)\n\nStephen Gray and Matthew Van Gundy discovered that NTP incorrectly\nvalidated crypto-NAKs. A remote attacker could possibly use this issue to\nprevent clients from synchronizing. (CVE-2016-1547)\n\nMiroslav Lichvar and Jonathan Gardner discovered that NTP incorrectly\nhandled switching to interleaved symmetric mode. A remote attacker could\npossibly use this issue to prevent clients from synchronizing.\n(CVE-2016-1548)\n\nMatthew Van Gundy, Stephen Gray and Loganaden Velvindron discovered that\nNTP incorrectly handled message authentication. A remote attacker could\npossibly use this issue to recover the message digest key. (CVE-2016-1550)\n\nYihan Lian discovered that NTP incorrectly handled duplicate IPs on\nunconfig directives. An authenticated remote attacker could possibly use\nthis issue to cause NTP to crash, resulting in a denial of service.\n(CVE-2016-2516)\n\nYihan Lian discovered that NTP incorrectly handled certail peer\nassociations. A remote attacker could possibly use this issue to cause NTP\nto crash, resulting in a denial of service. (CVE-2016-2518)\n\nJakub Prokes discovered that NTP incorrectly handled certain spoofed\npackets. A remote attacker could possibly use this issue to cause a denial\nof service. (CVE-2016-4954)\n\nMiroslav Lichvar discovered that NTP incorrectly handled certain packets\nwhen autokey is enabled. A remote attacker could possibly use this issue to\ncause a denial of service. (CVE-2016-4955)\n\nMiroslav Lichvar discovered that NTP incorrectly handled certain spoofed\nbroadcast packets. A remote attacker could possibly use this issue to\ncause a denial of service. (CVE-2016-4956)\n\nIn the default installation, attackers would be isolated by the NTP\nAppArmor profile.\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2015-7973",
"UBUNTU-CVE-2015-7974",
"UBUNTU-CVE-2015-7975",
"UBUNTU-CVE-2015-7976",
"UBUNTU-CVE-2015-7977",
"UBUNTU-CVE-2015-7978",
"UBUNTU-CVE-2015-7979",
"UBUNTU-CVE-2015-8138",
"UBUNTU-CVE-2015-8158",
"UBUNTU-CVE-2016-0727",
"UBUNTU-CVE-2016-1547",
"UBUNTU-CVE-2016-1548",
"UBUNTU-CVE-2016-1550",
"UBUNTU-CVE-2016-2516",
"UBUNTU-CVE-2016-2518",
"UBUNTU-CVE-2016-4954",
"UBUNTU-CVE-2016-4955",
"UBUNTU-CVE-2016-4956"
],
"related": [],
"published": "2016-10-05T18:01:12Z",
"modified": "2026-02-10T04:41:02Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "ntp",
"purl": "pkg:deb/ubuntu/ntp@1:4.2.6.p5+dfsg-3ubuntu2.14.04.10?arch=source&distro=trusty"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10"
}
]
}
],
"versions": [
"1:4.2.6.p5+dfsg-3ubuntu2",
"1:4.2.6.p5+dfsg-3ubuntu2.14.04.1",
"1:4.2.6.p5+dfsg-3ubuntu2.14.04.2",
"1:4.2.6.p5+dfsg-3ubuntu2.14.04.3",
"1:4.2.6.p5+dfsg-3ubuntu2.14.04.5",
"1:4.2.6.p5+dfsg-3ubuntu2.14.04.6",
"1:4.2.6.p5+dfsg-3ubuntu2.14.04.7",
"1:4.2.6.p5+dfsg-3ubuntu2.14.04.8"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ntp",
"binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10"
},
{
"binary_name": "ntpdate",
"binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:14.04:LTS",
"cves": [
{
"id": "CVE-2015-7973",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2015-7974",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2015-7976",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2015-7977",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2015-7978",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2015-7979",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2015-8138",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2015-8158",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-0727",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-1547",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2016-1548",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2016-1550",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2016-2516",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2016-2518",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-4954",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-4955",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-4956",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "ntp",
"purl": "pkg:deb/ubuntu/ntp@1:4.2.8p4+dfsg-3ubuntu5.3?arch=source&distro=xenial"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:4.2.8p4+dfsg-3ubuntu5.3"
}
]
}
],
"versions": [
"1:4.2.6.p5+dfsg-3ubuntu8",
"1:4.2.6.p5+dfsg-3ubuntu8.1",
"1:4.2.6.p5+dfsg-3ubuntu9",
"1:4.2.8p4+dfsg-3ubuntu1",
"1:4.2.8p4+dfsg-3ubuntu2",
"1:4.2.8p4+dfsg-3ubuntu3",
"1:4.2.8p4+dfsg-3ubuntu4",
"1:4.2.8p4+dfsg-3ubuntu5",
"1:4.2.8p4+dfsg-3ubuntu5.1",
"1:4.2.8p4+dfsg-3ubuntu5.2"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ntp",
"binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3"
},
{
"binary_name": "ntpdate",
"binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:16.04:LTS",
"cves": [
{
"id": "CVE-2015-7973",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2015-7974",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2015-7975",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "negligible"
}
]
},
{
"id": "CVE-2015-7976",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2015-7977",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2015-7978",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2015-7979",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2015-8138",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2015-8158",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-0727",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-1547",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2016-1548",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2016-1550",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2016-2516",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2016-2518",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-4954",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-4955",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2016-4956",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "low"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3096-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-7973"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-7974"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-7975"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-7976"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-7977"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-7978"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-7979"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-8138"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2015-8158"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-0727"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1547"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1548"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-1550"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-2516"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-2518"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4954"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4955"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2016-4956"
}
]
}
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