CVE-2019-5023

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0784", "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0784", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An exploitable vulnerability exists in the grsecurity PaX patch for the function read_kmem, in PaX from version pax-linux-4.9.8-test1 to 4.9.24-test7, grsecurity official from version grsecurity-3.1-4.9.8-201702060653 to grsecurity-3.1-4.9.24-201704252333, grsecurity unofficial from version v4.9.25-unofficialgrsec to v4.9.74-unofficialgrsec. PaX adds a temp buffer to the read_kmem function, which is never freed when an invalid address is supplied. This results in a memory leakage that can lead to a crash of the system. An attacker needs to induce a read to /dev/kmem using an invalid address to exploit this vulnerability."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-772"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-5023", "ASSIGNER": "talos-cna@cisco.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}}, "publishedDate": "2019-10-31T21:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:opensrcsec:grsecurity:*:*:*:*:official:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "3.1-4.9.24-201704252333", "versionStartIncluding": "3.1-4.9.8-201702060653"}, {"cpe23Uri": "cpe:2.3:a:opensrcsec:grsecurity:*:*:*:*:unofficial:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.9.74", "versionStartIncluding": "4.9.25"}, {"cpe23Uri": "cpe:2.3:a:opensrcsec:pax:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "pax-linux-4.9.8-test7", "versionStartIncluding": "pax-linux-4.9.8-test1"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-06-07T18:41Z"}