certfr_avis - certa-2011-avi-615

CERTA-2011-AVI-615

Vulnerability from certfr_avis

Une vulnérabilité dans le proxy Squid permet de mener une attaque par déni de service à distance.

Description

Une erreur de segmentation a lieu lors d'une libération mémoire lorsque Squid tente de résoudre une requête DNS où un enregistrement de type CNAME pointe sur un autre enregistrement de type CNAME qui pointe sur un enregistrement de type A vide. Une personne malintentionnée peut envoyer une requête spécifique à un proxy Squid, provoquant cette erreur pour mener une attaque par déni de service à distance.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Squid version 3.1 non patchée.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2011-4096 (GCVE-0-2011-4096)

Vulnerability from cvelistv5

Published

2011-11-17 19:00

Modified

2024-08-06 23:53

Severity ?

CWE

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

URL

Tags

	http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12	x_refsource_MISC
	http://www.redhat.com/support/errata/RHSA-2011-1791.html	vendor-advisory, x_refsource_REDHAT
	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html	vendor-advisory, x_refsource_SUSE
	http://www.openwall.com/lists/oss-security/2011/10/31/5	mailing-list, x_refsource_MLIST
	http://www.securitytracker.com/id?1026265	vdb-entry, x_refsource_SECTRACK
	http://www.openwall.com/lists/oss-security/2011/11/01/3	mailing-list, x_refsource_MLIST
	http://www.mandriva.com/security/advisories?name=MDVSA-2011:193	vendor-advisory, x_refsource_MANDRIVA
	http://secunia.com/advisories/46609	third-party-advisory, x_refsource_SECUNIA
	http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html	vendor-advisory, x_refsource_SUSE
	http://secunia.com/advisories/47459	third-party-advisory, x_refsource_SECUNIA

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T23:53:32.679Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12"
          },
          {
            "name": "RHSA-2011:1791",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://www.redhat.com/support/errata/RHSA-2011-1791.html"
          },
          {
            "name": "SUSE-SU-2016:1996",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html"
          },
          {
            "name": "[oss-security] 20111031 CVE Request -- Squid v3.1.16 -- Invalid free by processing CNAME DNS record pointing to another CNAME record pointing to an empty A-record",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2011/10/31/5"
          },
          {
            "name": "1026265",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id?1026265"
          },
          {
            "name": "[oss-security] 20111031 Re: CVE Request -- Squid v3.1.16 -- Invalid free by processing CNAME DNS record pointing to another CNAME record pointing to an empty A-record",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2011/11/01/3"
          },
          {
            "name": "MDVSA-2011:193",
            "tags": [
              "vendor-advisory",
              "x_refsource_MANDRIVA",
              "x_transferred"
            ],
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:193"
          },
          {
            "name": "46609",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/46609"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html"
          },
          {
            "name": "SUSE-SU-2016:2089",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html"
          },
          {
            "name": "47459",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/47459"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2011-10-31T00:00:00",
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2016-11-25T20:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://bugs.squid-cache.org/show_bug.cgi?id=3237#c12"
        },
        {
          "name": "RHSA-2011:1791",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "http://www.redhat.com/support/errata/RHSA-2011-1791.html"
        },
        {
          "name": "SUSE-SU-2016:1996",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html"
        },
        {
          "name": "[oss-security] 20111031 CVE Request -- Squid v3.1.16 -- Invalid free by processing CNAME DNS record pointing to another CNAME record pointing to an empty A-record",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2011/10/31/5"
        },
        {
          "name": "1026265",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id?1026265"
        },
        {
          "name": "[oss-security] 20111031 Re: CVE Request -- Squid v3.1.16 -- Invalid free by processing CNAME DNS record pointing to another CNAME record pointing to an empty A-record",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2011/11/01/3"
        },
        {
          "name": "MDVSA-2011:193",
          "tags": [
            "vendor-advisory",
            "x_refsource_MANDRIVA"
          ],
          "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:193"
        },
        {
          "name": "46609",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/46609"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.squid-cache.org/Versions/v3/3.1/changesets/SQUID_3_1_16.html"
        },
        {
          "name": "SUSE-SU-2016:2089",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html"
        },
        {
          "name": "47459",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/47459"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2011-4096",
    "datePublished": "2011-11-17T19:00:00",
    "dateReserved": "2011-10-18T00:00:00",
    "dateUpdated": "2024-08-06T23:53:32.679Z",
    "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.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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.

Action not permitted