FKIE_CVE-2023-31130

Vulnerability from fkie_nvd - Published: 2023-05-25 22:15 - Updated: 2026-06-17 05:56
Severity
4.1 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
6.4 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
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.
References
security-advisories@github.comhttps://github.com/c-ares/c-ares/releases/tag/cares-1_19_1Release Notes
security-advisories@github.comhttps://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6vThird Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2023/06/msg00034.htmlMailing List
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/Mailing List, Third Party Advisory
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/Mailing List, Third Party Advisory
security-advisories@github.comhttps://security.gentoo.org/glsa/202310-09Third Party Advisory
security-advisories@github.comhttps://security.netapp.com/advisory/ntap-20240605-0005/
security-advisories@github.comhttps://www.debian.org/security/2023/dsa-5419Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1Release Notes
af854a3a-2127-422b-91ae-364da2661108https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6vThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/06/msg00034.htmlMailing List
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202310-09Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240605-0005/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5419Third Party Advisory
Impacted products
Vendor Product Version
c-ares_project c-ares *
fedoraproject fedora 37
fedoraproject fedora 38
debian debian_linux 10.0
debian debian_linux 11.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "c-ares",
          "vendor": "c-ares",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.19.1"
            }
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  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2023-31130",
  "lastModified": "2026-06-17T05:56:20.050",
  "metrics": {
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          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H",
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
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          "role": "CISA Coordinator",
          "timestamp": "2025-01-16T18:35:37.326640Z",
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}



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