CVE-2019-18679 (GCVE-0-2019-18679)

Vulnerability from cvelistv5 – Published: 2019-11-26 16:14 – Updated: 2024-08-05 02:02
VLAI?
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.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
Show details on NVD website

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    "nvd": "{\"cve\":{\"id\":\"CVE-2019-18679\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2019-11-26T17:15:13.047\",\"lastModified\":\"2024-11-21T04:33:31.133\",\"vulnStatus\":\"Modified\",\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.0\",\"versionEndIncluding\":\"2.7\",\"matchCriteriaId\":\"466DF174-7C87-4D0E-B10D-F3F88014D9F5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.0\",\"versionEndIncluding\":\"3.5.28\",\"matchCriteriaId\":\"FC9F2659-B37B-4E7B-AE40-B91BF3CE4E88\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.0\",\"versionEndIncluding\":\"4.8\",\"matchCriteriaId\":\"A278895E-7005-4F4B-8649-A013F60E33D4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:2.7:stable2:*:*:*:*:*:*\",\"matchCriteriaId\":\"EFBB466C-C679-4B4B-87C2-E7853E5B3F04\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:2.7:stable3:*:*:*:*:*:*\",\"matchCriteriaId\":\"A03692DD-779F-4E3C-861C-29943870A816\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:2.7:stable4:*:*:*:*:*:*\",\"matchCriteriaId\":\"79FF6B3C-A3CE-4AA2-80F9-44D05A6B2F08\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:2.7:stable5:*:*:*:*:*:*\",\"matchCriteriaId\":\"3CF6E367-D33B-4B60-8C40-4618C47D53E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:2.7:stable6:*:*:*:*:*:*\",\"matchCriteriaId\":\"0FA1F4FE-629C-4489-A13C-017A824C840F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:2.7:stable7:*:*:*:*:*:*\",\"matchCriteriaId\":\"2479C5BF-94E1-4153-9FA3-333BC00F01D6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:2.7:stable8:*:*:*:*:*:*\",\"matchCriteriaId\":\"8ABFCCCC-7584-466E-97CC-6EBD3934A70E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:squid-cache:squid:2.7:stable9:*:*:*:*:*:*\",\"matchCriteriaId\":\"F17E49BF-FB11-4EE6-B6AC-30914F381B2F\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CD783B0C-9246-47D9-A937-6144FE8BFF0F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A31C8344-3E02-4EB8-8BD8-4C84B7959624\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"97A4B8DF-58DA-4AB6-A1F9-331B36409BA3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"80F0FA5D-8D3B-4C0E-81E2-87998286AF33\"}]}]}],\"references\":[{\"url\":\"http://www.squid-cache.org/Advisories/SQUID-2019_11.txt\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://www.squid-cache.org/Versions/v4/changesets/squid-4-671ba97abe929156dc4c717ee52ad22fba0f7443.patch\",\"source\":\"cve@mitre.org\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://bugzilla.suse.com/show_bug.cgi?id=1156324\",\"source\":\"cve@mitre.org\",\"tags\":[\"Issue Tracking\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/squid-cache/squid/pull/491\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2019/12/msg00011.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party 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Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/202003-34\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://usn.ubuntu.com/4213-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2020/dsa-4682\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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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.


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