CVE-2023-31130 (GCVE-0-2023-31130)

Vulnerability from cvelistv5 – Published: 2023-05-25 21:45 – Updated: 2025-02-13 16:49
VLAI
Title
Buffer Underwrite in ares_inet_net_pton()
Summary
c-ares is an asynchronous resolver library. ares_inet_net_pton() is vulnerable to a buffer underflow for certain ipv6 addresses, in particular "0::00:00:00/2" was found to cause an issue. C-ares only uses this function internally for configuration purposes which would require an administrator to configure such an address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes and thus be vulnerable to more severe issues. This issue has been fixed in 1.19.1.
Severity
4.1 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-124 - Buffer Underwrite ('Buffer Underflow')
Assigner
References
Impacted products
Vendor Product Version
c-ares c-ares Affected: < 1.19.1
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      "title": "c-ares: Buffer Underwrite in ares_inet_net_pton()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-31130.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-17T13:46:33Z",
      "cve": "CVE-2023-31130",
      "id": "CVE-2023-31130",
      "initial_release_date": "2023-05-23T02:54:33Z",
      "product_status:known_affected": "295",
      "product_status:recommended": "468",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-31130",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-31130.json",
      "version": "66"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v\", \"name\": \"https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v\", \"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-20240605-0005/\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T14:45:26.018Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-31130\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-01-16T18:35:37.326640Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-01-16T18:35:40.621Z\"}}], \"cna\": {\"title\": \"Buffer Underwrite in ares_inet_net_pton()\", \"source\": {\"advisory\": \"GHSA-x6mf-cxr9-8q6v\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.1, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"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-x6mf-cxr9-8q6v\", \"name\": \"https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v\", \"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-20240605-0005/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"c-ares is an asynchronous resolver library. ares_inet_net_pton() is vulnerable to a buffer underflow for certain ipv6 addresses, in particular \\\"0::00:00:00/2\\\" was found to cause an issue.  C-ares only uses this function internally for configuration purposes which would require an administrator to configure such an address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes and thus be vulnerable to more severe issues. This issue has been fixed in 1.19.1.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-124\", \"description\": \"CWE-124: Buffer Underwrite (\u0027Buffer Underflow\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2024-06-10T16:08:34.510Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-31130\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T16:49:44.998Z\", \"dateReserved\": \"2023-04-24T21:44:10.416Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-05-25T21:45:42.645Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.