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Vulnerability details: VCID-kuz8-afhc-pqaf
Vulnerability ID VCID-kuz8-afhc-pqaf
Aliases CVE-2023-31130
GHSA-x6mf-cxr9-8q6v
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.
Status Published
Exploitability 0.5
Weighted Severity 5.8
Risk 2.9
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-787 Out-of-bounds Write
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-124 Buffer Underwrite ('Buffer Underflow')
System Score Found at
cvssv3 5.7 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-31130.json
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2023-31130
cvssv3.1 4.1 https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
ssvc Track https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
cvssv3.1 4.1 https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v
ssvc Track https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v
cvssv3.1 4.1 https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
ssvc Track https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
cvssv3.1 4.1 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
cvssv3.1 4.1 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
cvssv3.1 6.4 https://nvd.nist.gov/vuln/detail/CVE-2023-31130
cvssv3.1 4.1 https://security.gentoo.org/glsa/202310-09
ssvc Track https://security.gentoo.org/glsa/202310-09
cvssv3.1 4.1 https://security.netapp.com/advisory/ntap-20240605-0005/
ssvc Track https://security.netapp.com/advisory/ntap-20240605-0005/
cvssv3.1 4.1 https://www.debian.org/security/2023/dsa-5419
ssvc Track https://www.debian.org/security/2023/dsa-5419
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-31130.json
https://api.first.org/data/v1/epss?cve=CVE-2023-31130
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-31130
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32067
https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
202310-09 https://security.gentoo.org/glsa/202310-09
2209497 https://bugzilla.redhat.com/show_bug.cgi?id=2209497
cpe:2.3:a:c-ares_project:c-ares:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:c-ares_project:c-ares:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
CVE-2023-31130 https://nvd.nist.gov/vuln/detail/CVE-2023-31130
dsa-5419 https://www.debian.org/security/2023/dsa-5419
GHSA-x6mf-cxr9-8q6v https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v
msg00034.html https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
ntap-20240605-0005 https://security.netapp.com/advisory/ntap-20240605-0005/
RHSA-2023:3577 https://access.redhat.com/errata/RHSA-2023:3577
RHSA-2023:3586 https://access.redhat.com/errata/RHSA-2023:3586
RHSA-2023:4033 https://access.redhat.com/errata/RHSA-2023:4033
RHSA-2023:4034 https://access.redhat.com/errata/RHSA-2023:4034
RHSA-2023:4035 https://access.redhat.com/errata/RHSA-2023:4035
RHSA-2023:4036 https://access.redhat.com/errata/RHSA-2023:4036
RHSA-2023:4039 https://access.redhat.com/errata/RHSA-2023:4039
RHSA-2023:6635 https://access.redhat.com/errata/RHSA-2023:6635
RHSA-2023:7207 https://access.redhat.com/errata/RHSA-2023:7207
RHSA-2023:7392 https://access.redhat.com/errata/RHSA-2023:7392
RHSA-2023:7543 https://access.redhat.com/errata/RHSA-2023:7543
USN-6164-1 https://usn.ubuntu.com/6164-1/
USN-6164-2 https://usn.ubuntu.com/6164-2/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-31130.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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unchanged

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Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-16T18:35:37Z/ Found at https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-16T18:35:37Z/ Found at https://github.com/c-ares/c-ares/security/advisories/GHSA-x6mf-cxr9-8q6v
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-16T18:35:37Z/ Found at https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-16T18:35:37Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-16T18:35:37Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2023-31130
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

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Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://security.gentoo.org/glsa/202310-09
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-16T18:35:37Z/ Found at https://security.gentoo.org/glsa/202310-09
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://security.netapp.com/advisory/ntap-20240605-0005/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

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none

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required

unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-16T18:35:37Z/ Found at https://security.netapp.com/advisory/ntap-20240605-0005/
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://www.debian.org/security/2023/dsa-5419
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

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required

unchanged

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-16T18:35:37Z/ Found at https://www.debian.org/security/2023/dsa-5419
Exploit Prediction Scoring System (EPSS)
Percentile 0.00879
EPSS Score 0.00011
Published At Aug. 10, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:38:55.154431+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/6164-1/ 37.0.0