CVE-2020-28974

{"id": "CVE-2020-28974", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:C", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 8.5, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.0, "attackVector": "PHYSICAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 0.3}]}, "published": "2020-11-20T18:15:12.120", "references": [{"url": "http://www.openwall.com/lists/oss-security/2020/11/25/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7", "tags": ["Release Notes", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c4e0dff2095c579b142d5a0693257f1c58b4804", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://seclists.org/oss-sec/2020/q4/104", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://security.netapp.com/advisory/ntap-20210108-0003/", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.openwall.com/lists/oss-security/2020/11/25/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7", "tags": ["Release Notes", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3c4e0dff2095c579b142d5a0693257f1c58b4804", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://seclists.org/oss-sec/2020/q4/104", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.netapp.com/advisory/ntap-20210108-0003/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height."}, {"lang": "es", "value": "Una lectura fuera de l\u00edmites en fbcon en el kernel de Linux versiones anteriores a 5.9.7, podr\u00eda ser usada por parte de atacantes locales para leer informaci\u00f3n privilegiada o potencialmente bloquear el kernel, tambi\u00e9n se conoce como CID-3c4e0dff2095. Esto ocurre porque la funci\u00f3n KD_FONT_OP_COPY en el archivo drivers/tty/vt/vt.c puede ser usada para manipulaciones tales como la altura de la fuente"}], "lastModified": "2024-11-21T05:23:25.433", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0AA34C8B-74C6-4577-B819-F87CB15BA101", "versionEndExcluding": "5.9.7"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}