CVE-2023-32067 (GCVE-0-2023-32067)

Vulnerability from cvelistv5 – Published: 2023-05-25 22:49 – Updated: 2025-02-13 16:50
VLAI
Title
0-byte UDP payload DoS in c-ares
Summary
c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously interprets the 0 length as a graceful shutdown of the connection. This issue has been patched in version 1.19.1.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
c-ares c-ares Affected: < 1.19.1
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fedoraproject fedora Affected: 37
    cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
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c-ares c-ares Affected: 0 , < 1.19.1 (custom)
    cpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*
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fedoraproject fedora Affected: 38
    cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
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debian debian_linux Affected: 10.0
Affected: 11.0
    cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc\", \"name\": \"https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1\", \"name\": \"https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.debian.org/security/2023/dsa-5419\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.gentoo.org/glsa/202310-09\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240605-0004/\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T15:03:28.668Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-32067\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-07-16T18:37:41.012008Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*\"], \"vendor\": \"fedoraproject\", \"product\": \"fedora\", \"versions\": [{\"status\": \"affected\", \"version\": \"37\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:a:c-ares:c-ares:*:*:*:*:*:*:*:*\"], \"vendor\": \"c-ares\", \"product\": \"c-ares\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"1.19.1\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*\"], \"vendor\": \"fedoraproject\", \"product\": \"fedora\", \"versions\": [{\"status\": \"affected\", \"version\": \"38\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\", \"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\"], \"vendor\": \"debian\", \"product\": \"debian_linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0\"}, {\"status\": \"affected\", \"version\": \"11.0\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-07-16T18:40:42.739Z\"}}], \"cna\": {\"title\": \"0-byte UDP payload DoS in c-ares\", \"source\": {\"advisory\": \"GHSA-9g78-jv2r-p7vc\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"c-ares\", \"product\": \"c-ares\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 1.19.1\"}]}], \"references\": [{\"url\": \"https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc\", \"name\": \"https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1\", \"name\": \"https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/\"}, {\"url\": \"https://www.debian.org/security/2023/dsa-5419\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html\"}, {\"url\": \"https://security.gentoo.org/glsa/202310-09\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240605-0004/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. 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      "cveMetadata": "{\"cveId\": \"CVE-2023-32067\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T16:50:20.105Z\", \"dateReserved\": \"2023-05-01T16:47:35.314Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-05-25T22:49:55.860Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.