{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2025-31498",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2025-03-28T13:36:51.300Z",
        "datePublished": "2025-04-08T13:53:11.232Z",
        "dateUpdated": "2025-04-08T18:40:36.081Z"
    },
    "containers": {
        "cna": {
            "title": "c-ares has a use-after-free in read_answers()",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-416",
                            "lang": "en",
                            "description": "CWE-416: Use After Free",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.3,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/c-ares/c-ares/security/advisories/GHSA-6hxc-62jh-p29v",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/c-ares/c-ares/security/advisories/GHSA-6hxc-62jh-p29v"
                },
                {
                    "name": "https://github.com/c-ares/c-ares/pull/821",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/c-ares/c-ares/pull/821"
                },
                {
                    "name": "https://github.com/c-ares/c-ares/commit/29d38719112639d8c0ba910254a3dd4f482ea2d1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/c-ares/c-ares/commit/29d38719112639d8c0ba910254a3dd4f482ea2d1"
                }
            ],
            "affected": [
                {
                    "vendor": "c-ares",
                    "product": "c-ares",
                    "versions": [
                        {
                            "version": ">= 1.32.3, < 1.34.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2025-04-08T13:53:11.232Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "c-ares is an asynchronous resolver library. From 1.32.3 through 1.34.4, there is a use-after-free in read_answers() when process_answer() may re-enqueue a query either due to a DNS Cookie Failure or when the upstream server does not properly support EDNS, or possibly on TCP queries if the remote closed the connection immediately after a response. If there was an issue trying to put that new transaction on the wire, it would close the connection handle, but read_answers() was still expecting the connection handle to be available to possibly dequeue other responses. In theory a remote attacker might be able to trigger this by flooding the target with ICMP UNREACHABLE packets if they also control the upstream nameserver and can return a result with one of those conditions, this has been untested. Otherwise only a local attacker might be able to change system behavior to make send()/write() return a failure condition. This vulnerability is fixed in 1.34.5."
                }
            ],
            "source": {
                "advisory": "GHSA-6hxc-62jh-p29v",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2025/04/08/3"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2025-04-08T15:03:00.750Z"
                }
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-04-08T18:40:21.274882Z",
                                "id": "CVE-2025-31498",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-04-08T18:40:36.081Z"
                }
            }
        ]
    }
}