{ "id": "CVE-2018-15572", "sourceIdentifier": "cve@mitre.org", "published": "2018-08-20T02:29:00.263", "lastModified": "2019-10-03T00:03:26.223", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks." }, { "lang": "es", "value": "La funci\u00f3n spectre_v2_select_mitigation en arch/x86/kernel/cpu/bugs.c en el kernel de Linux en versiones anteriores a la 4.18.1 no siempre completa RSB en un cambio de contexto, lo que hace que sea m\u00e1s f\u00e1cil para los atacantes realizar ataques spectreRSB espacio de usuario-espacio de usuario." } ], "metrics": { "cvssMetricV30": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.0, "impactScore": 4.0 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1 }, "baseSeverity": "LOW", "exploitabilityScore": 3.9, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43" }, { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*", "matchCriteriaId": "8D305F7A-D159-4716-AB26-5E38BB5CD991" }, { "vulnerable": true, "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084" }, { "vulnerable": true, "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B" }, { "vulnerable": true, "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.18.1", "matchCriteriaId": "C4E114F9-94BB-4D0A-A648-C9D431110D2F" } ] } ] } ], "references": [ { "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346", "source": "cve@mitre.org", "tags": [ "Mitigation", "Patch", "Vendor Advisory" ] }, { "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1", "source": "cve@mitre.org", "tags": [ "Mitigation", "Patch", "Vendor Advisory" ] }, { "url": "https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346", "source": "cve@mitre.org", "tags": [ "Mitigation", "Patch", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html", "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://usn.ubuntu.com/3775-1/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://usn.ubuntu.com/3775-2/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://usn.ubuntu.com/3776-1/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://usn.ubuntu.com/3776-2/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://usn.ubuntu.com/3777-1/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://usn.ubuntu.com/3777-2/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://usn.ubuntu.com/3777-3/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.debian.org/security/2018/dsa-4308", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] } ] }