FKIE_CVE-2019-18679

Vulnerability from fkie_nvd - Published: 2019-11-26 17:15 - Updated: 2024-11-21 04:33
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks.
References
cve@mitre.orghttp://www.squid-cache.org/Advisories/SQUID-2019_11.txtThird Party Advisory
cve@mitre.orghttp://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patchRelease Notes
cve@mitre.orghttps://bugzilla.suse.com/show_bug.cgi?id=1156324Issue Tracking, Third Party Advisory
cve@mitre.orghttps://github.com/squid-cache/squid/pull/491Patch, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2019/12/msg00011.htmlThird Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/
cve@mitre.orghttps://security.gentoo.org/glsa/202003-34
cve@mitre.orghttps://usn.ubuntu.com/4213-1/Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2020/dsa-4682
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Advisories/SQUID-2019_11.txtThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patchRelease Notes
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.suse.com/show_bug.cgi?id=1156324Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/squid-cache/squid/pull/491Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/12/msg00011.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202003-34
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4213-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4682
Impacted products
Vendor Product Version
squid-cache squid *
squid-cache squid *
squid-cache squid *
squid-cache squid 2.7
squid-cache squid 2.7
squid-cache squid 2.7
squid-cache squid 2.7
squid-cache squid 2.7
squid-cache squid 2.7
squid-cache squid 2.7
squid-cache squid 2.7
canonical ubuntu_linux 16.04
canonical ubuntu_linux 18.04
canonical ubuntu_linux 19.04
canonical ubuntu_linux 19.10
debian debian_linux 8.0
fedoraproject fedora 30
fedoraproject fedora 31
To clipboard 

{
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              "matchCriteriaId": "466DF174-7C87-4D0E-B10D-F3F88014D9F5",
              "versionEndIncluding": "2.7",
              "versionStartIncluding": "2.0",
              "vulnerable": true
            },
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en Squid versiones 2.x, 3.x y versiones 4.x hasta 4.8. Debido a una gesti\u00f3n de datos incorrecta, es vulnerable a una divulgaci\u00f3n de informaci\u00f3n cuando se procesa HTTP Digest Authentication. Los tokens Nonce contienen el valor de byte sin procesar de un puntero que se encuentra dentro de la asignaci\u00f3n de memoria heap. Esta informaci\u00f3n reduce las protecciones de ASLR y puede ayudar a atacantes a aislar \u00e1reas de memoria para apuntar ataques de ejecuci\u00f3n de c\u00f3digo remota."
    }
  ],
  "id": "CVE-2019-18679",
  "lastModified": "2024-11-21T04:33:31.133",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-11-26T17:15:13.047",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://www.squid-cache.org/Advisories/SQUID-2019_11.txt"
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      "url": "https://www.debian.org/security/2020/dsa-4682"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.