fkie_cve-2011-4096
Vulnerability from fkie_nvd
Published
2011-11-17 19:55
Modified
2025-04-11 00:51
Severity ?
Summary
The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record.
References
secalert@redhat.comhttp://bugs.squid-cache.org/show_bug.cgi?id=3237#c12
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
secalert@redhat.comhttp://secunia.com/advisories/46609Vendor Advisory
secalert@redhat.comhttp://secunia.com/advisories/47459
secalert@redhat.comhttp://www.mandriva.com/security/advisories?name=MDVSA-2011:193
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/10/31/5
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/11/01/3
secalert@redhat.comhttp://www.redhat.com/support/errata/RHSA-2011-1791.html
secalert@redhat.comhttp://www.securitytracker.com/id?1026265
secalert@redhat.comhttp://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html
af854a3a-2127-422b-91ae-364da2661108http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/46609Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/47459
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDVSA-2011:193
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/10/31/5
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/11/01/3
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2011-1791.html
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1026265
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html
Impacted products
Vendor Product Version
squid-cache squid *
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0
squid-cache squid 3.0.stable1
squid-cache squid 3.0.stable2
squid-cache squid 3.0.stable3
squid-cache squid 3.0.stable4
squid-cache squid 3.0.stable5
squid-cache squid 3.0.stable6
squid-cache squid 3.0.stable7
squid-cache squid 3.0.stable8
squid-cache squid 3.0.stable9
squid-cache squid 3.0.stable10
squid-cache squid 3.0.stable11
squid-cache squid 3.0.stable11
squid-cache squid 3.0.stable12
squid-cache squid 3.0.stable13
squid-cache squid 3.0.stable14
squid-cache squid 3.0.stable15
squid-cache squid 3.0.stable16
squid-cache squid 3.0.stable16
squid-cache squid 3.0.stable17
squid-cache squid 3.0.stable18
squid-cache squid 3.0.stable19
squid-cache squid 3.0.stable20
squid-cache squid 3.0.stable21
squid-cache squid 3.0.stable22
squid-cache squid 3.0.stable23
squid-cache squid 3.0.stable24
squid-cache squid 3.0.stable25
squid-cache squid 3.1
squid-cache squid 3.1.0.1
squid-cache squid 3.1.0.2
squid-cache squid 3.1.0.3
squid-cache squid 3.1.0.4
squid-cache squid 3.1.0.5
squid-cache squid 3.1.0.6
squid-cache squid 3.1.0.7
squid-cache squid 3.1.0.8
squid-cache squid 3.1.0.9
squid-cache squid 3.1.0.10
squid-cache squid 3.1.0.11
squid-cache squid 3.1.0.12
squid-cache squid 3.1.0.13
squid-cache squid 3.1.0.14
squid-cache squid 3.1.0.15
squid-cache squid 3.1.0.16
squid-cache squid 3.1.0.17
squid-cache squid 3.1.0.18
squid-cache squid 3.1.1
squid-cache squid 3.1.2
squid-cache squid 3.1.3
squid-cache squid 3.1.4
squid-cache squid 3.1.5
squid-cache squid 3.1.5.1
squid-cache squid 3.1.6
squid-cache squid 3.1.7
squid-cache squid 3.1.8
squid-cache squid 3.1.9
squid-cache squid 3.1.10
squid-cache squid 3.1.11
squid-cache squid 3.1.12
squid-cache squid 3.1.13
squid-cache squid 3.1.14


To clipboard 

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                     matchCriteriaId: "7FB84E4E-6A0A-41C8-9DDF-3C18F526F155",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.0.14:*:*:*:*:*:*:*",
                     matchCriteriaId: "2E49E5C3-D01F-4DBC-B33A-5495D3EC44F8",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.0.15:*:*:*:*:*:*:*",
                     matchCriteriaId: "79C53B22-9F33-43E7-8D1F-EEB0DEF4B503",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.0.16:*:*:*:*:*:*:*",
                     matchCriteriaId: "25B60DB2-F50C-42F0-B6C9-B25C34B8F578",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.0.17:*:*:*:*:*:*:*",
                     matchCriteriaId: "DE973F9E-8387-464F-AFA0-25215B340173",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.0.18:*:*:*:*:*:*:*",
                     matchCriteriaId: "03D3F0E3-0C50-4A86-87F4-90FC82B312F5",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.1:*:*:*:*:*:*:*",
                     matchCriteriaId: "CE26BEC0-B9C7-43F0-B0FB-E81870170B29",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.2:*:*:*:*:*:*:*",
                     matchCriteriaId: "D0778579-A193-4C61-BB1A-6D2E733F3958",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.3:*:*:*:*:*:*:*",
                     matchCriteriaId: "9ED5DC63-6E9D-4068-95DF-AF8FD9A0A7ED",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.4:*:*:*:*:*:*:*",
                     matchCriteriaId: "8DE890F9-12C0-4D66-B6C1-6A5A87FAD5F0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.5:*:*:*:*:*:*:*",
                     matchCriteriaId: "FB414FE3-3567-474B-B5A7-D3EF5DD63AB8",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.5.1:*:*:*:*:*:*:*",
                     matchCriteriaId: "AF450F17-12A2-4E33-875A-5F3C2CA4A5C1",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.6:*:*:*:*:*:*:*",
                     matchCriteriaId: "E3AB229E-2C32-410B-BFE2-62DCA734C3F3",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.7:*:*:*:*:*:*:*",
                     matchCriteriaId: "78A6D6B0-9BC0-418E-84EE-23697A0FEC19",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.8:*:*:*:*:*:*:*",
                     matchCriteriaId: "5BF7AFE1-A45A-43B7-B3C7-45C060D046BC",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.9:*:*:*:*:*:*:*",
                     matchCriteriaId: "41914354-D5BE-4B1F-BED3-0ECA43586537",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.10:*:*:*:*:*:*:*",
                     matchCriteriaId: "AE9A3716-8670-4847-A6EB-F601184D369E",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.11:*:*:*:*:*:*:*",
                     matchCriteriaId: "D0E88EE3-EC00-4F1F-BAEF-4F1F893C5C5F",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.12:*:*:*:*:*:*:*",
                     matchCriteriaId: "A330DFA8-BF79-45CC-BF88-6CEA26D7BC9E",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.13:*:*:*:*:*:*:*",
                     matchCriteriaId: "679A55F8-34B4-435A-8BCE-8F842F3FB269",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:squid-cache:squid:3.1.14:*:*:*:*:*:*:*",
                     matchCriteriaId: "898674F9-6BF7-469F-A74E-558EAFC2CD27",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "The idnsGrokReply function in Squid before 3.1.16 does not properly free memory, which allows remote attackers to cause a denial of service (daemon abort) via a DNS reply containing a CNAME record that references another CNAME record that contains an empty A record.",
      },
      {
         lang: "es",
         value: "La función idnsGrokReply en Squid anterior a v3.1.16 no adecuada de memoria libre, permite a atacantes remotos provocar una denegación de servicio (daemon abortar) a través de una respuesta DNS que contiene un registro CNAME que hace referencia a otro registro CNAME y este contiene un registro vacío.",
      },
   ],
   id: "CVE-2011-4096",
   lastModified: "2025-04-11T00:51:21.963",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "PARTIAL",
               baseScore: 5,
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               vectorString: "AV:N/AC:L/Au:N/C:N/I:N/A:P",
               version: "2.0",
            },
            exploitabilityScore: 10,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
   },
   published: "2011-11-17T19:55:01.453",
   references: [
      {
         source: "secalert@redhat.com",
         url: "http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12",
      },
      {
         source: "secalert@redhat.com",
         url: "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html",
      },
      {
         source: "secalert@redhat.com",
         url: "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html",
      },
      {
         source: "secalert@redhat.com",
         tags: [
            "Vendor Advisory",
         ],
         url: "http://secunia.com/advisories/46609",
      },
      {
         source: "secalert@redhat.com",
         url: "http://secunia.com/advisories/47459",
      },
      {
         source: "secalert@redhat.com",
         url: "http://www.mandriva.com/security/advisories?name=MDVSA-2011:193",
      },
      {
         source: "secalert@redhat.com",
         url: "http://www.openwall.com/lists/oss-security/2011/10/31/5",
      },
      {
         source: "secalert@redhat.com",
         url: "http://www.openwall.com/lists/oss-security/2011/11/01/3",
      },
      {
         source: "secalert@redhat.com",
         url: "http://www.redhat.com/support/errata/RHSA-2011-1791.html",
      },
      {
         source: "secalert@redhat.com",
         url: "http://www.securitytracker.com/id?1026265",
      },
      {
         source: "secalert@redhat.com",
         url: "http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Vendor Advisory",
         ],
         url: "http://secunia.com/advisories/46609",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://secunia.com/advisories/47459",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://www.mandriva.com/security/advisories?name=MDVSA-2011:193",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://www.openwall.com/lists/oss-security/2011/10/31/5",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://www.openwall.com/lists/oss-security/2011/11/01/3",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://www.redhat.com/support/errata/RHSA-2011-1791.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://www.securitytracker.com/id?1026265",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html",
      },
   ],
   sourceIdentifier: "secalert@redhat.com",
   vulnStatus: "Deferred",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-399",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
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Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



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Sightings

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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.
  • 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.