csaf_redhat - rhsa-2009

rhsa-2009_0046

Vulnerability from csaf_redhat

Published

2009-01-29 09:45

Modified

2024-11-22 02:27

Summary

Red Hat Security Advisory: ntp security update

Notes

Topic

Updated ntp packages to correct a security issue are now available for Red Hat Enterprise Linux 4 and 5. This update has been rated as having moderate 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 flaw was discovered in the way the ntpd daemon checked the return value of the OpenSSL EVP_VerifyFinal function. On systems using NTPv4 authentication, this could lead to an incorrect verification of cryptographic signatures, allowing time-spoofing attacks. (CVE-2009-0021) Note: This issue only affects systems that have enabled NTP authentication. By default, NTP authentication is not enabled. All ntp users are advised to upgrade to the updated packages, which contain a backported patch to resolve this issue. After installing the update, the ntpd daemon will restart automatically.

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": "Updated ntp packages to correct a security issue are now available for Red\nHat Enterprise Linux 4 and 5.\n\nThis update has been rated as having moderate security impact by the Red\nHat Security Response Team.",
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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 flaw was discovered in the way the ntpd daemon checked the return value\nof the OpenSSL EVP_VerifyFinal function. On systems using NTPv4\nauthentication, this could lead to an incorrect verification of\ncryptographic signatures, allowing time-spoofing attacks. (CVE-2009-0021)\n\nNote: This issue only affects systems that have enabled NTP authentication.\nBy default, NTP authentication is not enabled.\n\nAll ntp users are advised to upgrade to the updated packages, which contain\na backported patch to resolve this issue. After installing the update, the\nntpd daemon will restart automatically.",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2009:0046"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "ntp incorrectly checks for malformed signatures"
    }
  ]
}

cve-2009-0021

Vulnerability from cvelistv5

Published

2009-01-07 17:00

Modified

2024-08-07 04:17

Severity ?

Summary

NTP 4.2.4 before 4.2.4p5 and 4.2.5 before 4.2.5p150 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to CVE-2008-5077.

References

▼	URL	Tags
	http://support.apple.com/kb/HT3549	x_refsource_CONFIRM
	http://www.securityfocus.com/archive/1/499827/100/0/threaded	mailing-list, x_refsource_BUGTRAQ
	http://www.securitytracker.com/id?1021533	vdb-entry, x_refsource_SECTRACK
	https://lists.ntp.org/pipermail/announce/2009-January/000055.html	mailing-list, x_refsource_MLIST
	http://secunia.com/advisories/34642	third-party-advisory, x_refsource_SECUNIA
	http://www.redhat.com/support/errata/RHSA-2009-0046.html	vendor-advisory, x_refsource_REDHAT
	http://secunia.com/advisories/35074	third-party-advisory, x_refsource_SECUNIA
	http://lists.apple.com/archives/security-announce/2009/May/msg00002.html	vendor-advisory, x_refsource_APPLE
	http://secunia.com/advisories/33558	third-party-advisory, x_refsource_SECUNIA
	http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00000.html	vendor-advisory, x_refsource_SUSE
	http://www.ocert.org/advisories/ocert-2008-016.html	x_refsource_MISC
	http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.531177	vendor-advisory, x_refsource_SLACKWARE
	http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html	vendor-advisory, x_refsource_SUSE
	http://secunia.com/advisories/33648	third-party-advisory, x_refsource_SECUNIA
	http://secunia.com/advisories/33406	third-party-advisory, x_refsource_SECUNIA
	http://www.us-cert.gov/cas/techalerts/TA09-133A.html	third-party-advisory, x_refsource_CERT
	https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10035	vdb-entry, signature, x_refsource_OVAL
	http://www.vupen.com/english/advisories/2009/1297	vdb-entry, x_refsource_VUPEN
	http://www.vupen.com/english/advisories/2009/0042	vdb-entry, x_refsource_VUPEN

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

{
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-07T04:17:10.427Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://support.apple.com/kb/HT3549"
          },
          {
            "name": "20090107 [oCERT-2008-016] Multiple OpenSSL signature verification API misuses",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
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            "url": "http://www.securityfocus.com/archive/1/499827/100/0/threaded"
          },
          {
            "name": "1021533",
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              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
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          },
          {
            "name": "[announce] 20090108 NTP 4.2.4p6 Released",
            "tags": [
              "mailing-list",
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            "url": "https://lists.ntp.org/pipermail/announce/2009-January/000055.html"
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            "name": "34642",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
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            "url": "http://secunia.com/advisories/34642"
          },
          {
            "name": "RHSA-2009:0046",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
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            "url": "http://www.redhat.com/support/errata/RHSA-2009-0046.html"
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          {
            "name": "35074",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
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          },
          {
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            "tags": [
              "vendor-advisory",
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          {
            "name": "33558",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
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          },
          {
            "name": "SUSE-SR:2009:005",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00000.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.ocert.org/advisories/ocert-2008-016.html"
          },
          {
            "name": "SSA:2009-014-03",
            "tags": [
              "vendor-advisory",
              "x_refsource_SLACKWARE",
              "x_transferred"
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            "url": "http://slackware.com/security/viewer.php?l=slackware-security\u0026y=2009\u0026m=slackware-security.531177"
          },
          {
            "name": "SUSE-SR:2009:008",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html"
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              "x_refsource_SECUNIA",
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            "url": "http://secunia.com/advisories/33648"
          },
          {
            "name": "33406",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/33406"
          },
          {
            "name": "TA09-133A",
            "tags": [
              "third-party-advisory",
              "x_refsource_CERT",
              "x_transferred"
            ],
            "url": "http://www.us-cert.gov/cas/techalerts/TA09-133A.html"
          },
          {
            "name": "oval:org.mitre.oval:def:10035",
            "tags": [
              "vdb-entry",
              "signature",
              "x_refsource_OVAL",
              "x_transferred"
            ],
            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10035"
          },
          {
            "name": "ADV-2009-1297",
            "tags": [
              "vdb-entry",
              "x_refsource_VUPEN",
              "x_transferred"
            ],
            "url": "http://www.vupen.com/english/advisories/2009/1297"
          },
          {
            "name": "ADV-2009-0042",
            "tags": [
              "vdb-entry",
              "x_refsource_VUPEN",
              "x_transferred"
            ],
            "url": "http://www.vupen.com/english/advisories/2009/0042"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2009-01-07T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "NTP 4.2.4 before 4.2.4p5 and 4.2.5 before 4.2.5p150 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to CVE-2008-5077."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-10-11T19:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://support.apple.com/kb/HT3549"
        },
        {
          "name": "20090107 [oCERT-2008-016] Multiple OpenSSL signature verification API misuses",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "http://www.securityfocus.com/archive/1/499827/100/0/threaded"
        },
        {
          "name": "1021533",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id?1021533"
        },
        {
          "name": "[announce] 20090108 NTP 4.2.4p6 Released",
          "tags": [
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            "x_refsource_MLIST"
          ],
          "url": "https://lists.ntp.org/pipermail/announce/2009-January/000055.html"
        },
        {
          "name": "34642",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/34642"
        },
        {
          "name": "RHSA-2009:0046",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://www.redhat.com/support/errata/RHSA-2009-0046.html"
        },
        {
          "name": "35074",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/35074"
        },
        {
          "name": "APPLE-SA-2009-05-12",
          "tags": [
            "vendor-advisory",
            "x_refsource_APPLE"
          ],
          "url": "http://lists.apple.com/archives/security-announce/2009/May/msg00002.html"
        },
        {
          "name": "33558",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/33558"
        },
        {
          "name": "SUSE-SR:2009:005",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00000.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://www.ocert.org/advisories/ocert-2008-016.html"
        },
        {
          "name": "SSA:2009-014-03",
          "tags": [
            "vendor-advisory",
            "x_refsource_SLACKWARE"
          ],
          "url": "http://slackware.com/security/viewer.php?l=slackware-security\u0026y=2009\u0026m=slackware-security.531177"
        },
        {
          "name": "SUSE-SR:2009:008",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html"
        },
        {
          "name": "33648",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/33648"
        },
        {
          "name": "33406",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/33406"
        },
        {
          "name": "TA09-133A",
          "tags": [
            "third-party-advisory",
            "x_refsource_CERT"
          ],
          "url": "http://www.us-cert.gov/cas/techalerts/TA09-133A.html"
        },
        {
          "name": "oval:org.mitre.oval:def:10035",
          "tags": [
            "vdb-entry",
            "signature",
            "x_refsource_OVAL"
          ],
          "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10035"
        },
        {
          "name": "ADV-2009-1297",
          "tags": [
            "vdb-entry",
            "x_refsource_VUPEN"
          ],
          "url": "http://www.vupen.com/english/advisories/2009/1297"
        },
        {
          "name": "ADV-2009-0042",
          "tags": [
            "vdb-entry",
            "x_refsource_VUPEN"
          ],
          "url": "http://www.vupen.com/english/advisories/2009/0042"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2009-0021",
    "datePublished": "2009-01-07T17:00:00",
    "dateReserved": "2008-12-15T00:00:00",
    "dateUpdated": "2024-08-07T04:17:10.427Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
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.

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