rhsa-2009_1039
Vulnerability from csaf_redhat
Published
2009-05-18 20:33
Modified
2024-11-05 17:04
Summary
Red Hat Security Advisory: ntp security update

Notes

Topic
An updated ntp package that fixes two security issues is now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team.
Details
The Network Time Protocol (NTP) is used to synchronize a computer's time with a referenced time source. A buffer overflow flaw was discovered in the ntpd daemon's NTPv4 authentication code. If ntpd was configured to use public key cryptography for NTP packet authentication, a remote attacker could use this flaw to send a specially-crafted request packet that could crash ntpd. (CVE-2009-1252) Note: NTP authentication is not enabled by default. A buffer overflow flaw was found in the ntpq diagnostic command. A malicious, remote server could send a specially-crafted reply to an ntpq request that could crash ntpq. (CVE-2009-0159) All ntp users are advised to upgrade to this updated package, which contains backported patches to resolve these issues. After installing the update, the ntpd daemon will be restarted automatically.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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        "text": "The Network Time Protocol (NTP) is used to synchronize a computer\u0027s time\nwith a referenced time source.\n\nA buffer overflow flaw was discovered in the ntpd daemon\u0027s NTPv4\nauthentication code. If ntpd was configured to use public key cryptography\nfor NTP packet authentication, a remote attacker could use this flaw to\nsend a specially-crafted request packet that could crash ntpd.\n(CVE-2009-1252)\n\nNote: NTP authentication is not enabled by default.\n\nA buffer overflow flaw was found in the ntpq diagnostic command. A\nmalicious, remote server could send a specially-crafted reply to an ntpq\nrequest that could crash ntpq. (CVE-2009-0159)\n\nAll ntp users are advised to upgrade to this updated package, which\ncontains backported patches to resolve these issues. After installing the\nupdate, the ntpd daemon will be restarted automatically.",
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        "full_product_name": {
          "name": "ntp-debuginfo-0:4.2.2p1-9.el5_3.2.x86_64 as a component of Red Hat Enterprise Linux (v. 5 server)",
          "product_id": "5Server:ntp-debuginfo-0:4.2.2p1-9.el5_3.2.x86_64"
        },
        "product_reference": "ntp-debuginfo-0:4.2.2p1-9.el5_3.2.x86_64",
        "relates_to_product_reference": "5Server"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2009-0159",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "discovery_date": "2009-03-12T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "490617"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Stack-based buffer overflow in the cookedprint function in ntpq/ntpq.c in ntpq in NTP before 4.2.4p7-RC2 allows remote NTP servers to execute arbitrary code via a crafted response.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "ntp: buffer overflow in ntpq",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "category": "self",
          "summary": "Canonical URL",
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        },
        {
          "category": "external",
          "summary": "RHBZ#490617",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=490617"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2009-0159",
          "url": "https://www.cve.org/CVERecord?id=CVE-2009-0159"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2009-0159",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2009-0159"
        }
      ],
      "release_date": "2009-04-09T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2009-05-18T20:33:00+00:00",
          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.\n\nThis update is available via Red Hat Network.  Details on how to use\nthe Red Hat Network to apply this update are available at\nhttp://kbase.redhat.com/faq/docs/DOC-11259",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2009:1039"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "ntp: buffer overflow in ntpq"
    },
    {
      "cve": "CVE-2009-1252",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "discovery_date": "2009-05-06T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "499694"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "ntp: remote arbitrary code execution vulnerability if autokeys is enabled",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2009-1252"
        },
        {
          "category": "external",
          "summary": "RHBZ#499694",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=499694"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2009-1252",
          "url": "https://www.cve.org/CVERecord?id=CVE-2009-1252"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2009-1252",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2009-1252"
        }
      ],
      "release_date": "2009-05-18T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2009-05-18T20:33:00+00:00",
          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.\n\nThis update is available via Red Hat Network.  Details on how to use\nthe Red Hat Network to apply this update are available at\nhttp://kbase.redhat.com/faq/docs/DOC-11259",
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          "restart_required": {
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        }
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
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            "5Client:ntp-0:4.2.2p1-9.el5_3.2.ppc",
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            "5Server:ntp-debuginfo-0:4.2.2p1-9.el5_3.2.i386",
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "ntp: remote arbitrary code execution vulnerability if autokeys is enabled"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • 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.
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  • 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.