suse-su-2018:1464-1
Vulnerability from csaf_suse
Published
2018-05-29 14:44
Modified
2018-05-29 14:44
Summary
Security update for ntp

Notes

Title of the patch
Security update for ntp
Description of the patch
This update for ntp fixes the following issues: - Update to 4.2.8p11 (bsc#1082210): * CVE-2016-1549: Sybil vulnerability: ephemeral association attack. While fixed in ntp-4.2.8p7, there are significant additional protections for this issue in 4.2.8p11. * CVE-2018-7182: ctl_getitem(): buffer read overrun leads to undefined behavior and information leak. (bsc#1083426) * CVE-2018-7170: Multiple authenticated ephemeral associations. (bsc#1083424) * CVE-2018-7184: Interleaved symmetric mode cannot recover from bad state. (bsc#1083422) * CVE-2018-7185: Unauthenticated packet can reset authenticated interleaved association. (bsc#1083420) * CVE-2018-7183: ntpq:decodearr() can write beyond its buffer limit.(bsc#1083417) - Don't use libevent's cached time stamps in sntp. (bsc#1077445) - Fix systemd migration in %pre (bsc#1034892).
Patchnames
SUSE-SLE-SERVER-12-2018-1000
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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        "text": "This update for ntp fixes the following issues:\n\n- Update to 4.2.8p11 (bsc#1082210):\n  * CVE-2016-1549: Sybil vulnerability: ephemeral association\n    attack. While fixed in ntp-4.2.8p7, there are significant\n    additional protections for this issue in 4.2.8p11.\n  * CVE-2018-7182: ctl_getitem(): buffer read overrun\n    leads to undefined behavior and information leak. (bsc#1083426)\n  * CVE-2018-7170: Multiple authenticated ephemeral\n    associations. (bsc#1083424)\n  * CVE-2018-7184: Interleaved symmetric mode cannot\n    recover from bad state. (bsc#1083422)\n  * CVE-2018-7185: Unauthenticated packet can reset\n    authenticated interleaved association. (bsc#1083420)\n  * CVE-2018-7183: ntpq:decodearr() can write beyond its\n    buffer limit.(bsc#1083417)\n- Don\u0027t use libevent\u0027s cached time stamps in sntp. (bsc#1077445)\n- Fix systemd migration in %pre (bsc#1034892).\n\n",
        "title": "Description of the patch"
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          "text": "A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victim\u0027s clock.",
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          "text": "ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim\u0027s clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.",
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          "text": "https://www.suse.com/security/cve/CVE-2018-7182"
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      ],
      "notes": [
        {
          "category": "general",
          "text": "The ctl_getitem method in ntpd in ntp-4.2.8p6 before 4.2.8p11 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted mode 6 packet with a ntpd instance from 4.2.8p6 through 4.2.8p10.",
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          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
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          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-7182",
          "url": "https://www.suse.com/security/cve/CVE-2018-7182"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1082210 for CVE-2018-7182",
          "url": "https://bugzilla.suse.com/1082210"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1083426 for CVE-2018-7182",
          "url": "https://bugzilla.suse.com/1083426"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1087324 for CVE-2018-7182",
          "url": "https://bugzilla.suse.com/1087324"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-05-29T14:44:40Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2018-7182"
    },
    {
      "cve": "CVE-2018-7183",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-7183"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-7183",
          "url": "https://www.suse.com/security/cve/CVE-2018-7183"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1082210 for CVE-2018-7183",
          "url": "https://bugzilla.suse.com/1082210"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1083417 for CVE-2018-7183",
          "url": "https://bugzilla.suse.com/1083417"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1087324 for CVE-2018-7183",
          "url": "https://bugzilla.suse.com/1087324"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-05-29T14:44:40Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2018-7183"
    },
    {
      "cve": "CVE-2018-7184",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-7184"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the \"received\" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-7184",
          "url": "https://www.suse.com/security/cve/CVE-2018-7184"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1082210 for CVE-2018-7184",
          "url": "https://bugzilla.suse.com/1082210"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1083422 for CVE-2018-7184",
          "url": "https://bugzilla.suse.com/1083422"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1087324 for CVE-2018-7184",
          "url": "https://bugzilla.suse.com/1087324"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-05-29T14:44:40Z",
          "details": "low"
        }
      ],
      "title": "CVE-2018-7184"
    },
    {
      "cve": "CVE-2018-7185",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-7185"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the \"other side\" of an interleaved association causing the victim ntpd to reset its association.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
          "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-7185",
          "url": "https://www.suse.com/security/cve/CVE-2018-7185"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1082210 for CVE-2018-7185",
          "url": "https://bugzilla.suse.com/1082210"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1083420 for CVE-2018-7185",
          "url": "https://bugzilla.suse.com/1083420"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1087324 for CVE-2018-7185",
          "url": "https://bugzilla.suse.com/1087324"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1089405 for CVE-2018-7185",
          "url": "https://bugzilla.suse.com/1089405"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-4.2.8p11-46.26.2.x86_64",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.ppc64le",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.s390x",
            "SUSE Linux Enterprise Server 12-LTSS:ntp-doc-4.2.8p11-46.26.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-05-29T14:44:40Z",
          "details": "low"
        }
      ],
      "title": "CVE-2018-7185"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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