{"api_version":"1","generated_at":"2026-06-22T04:16:47+00:00","cve":"CVE-2018-15594","urls":{"html":"https://cve.report/CVE-2018-15594","api":"https://cve.report/api/cve/CVE-2018-15594.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-15594","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-15594"},"summary":{"title":"CVE-2018-15594","description":"arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2018-08-20 08:29:00","updated_at":"2019-10-03 00:03:00"},"problem_types":["CWE-200"],"metrics":[],"references":[{"url":"https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html","name":"[debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update","refsource":"MLIST","tags":["Mailing List","Third Party Advisory"],"title":"[SECURITY] [DLA 1531-1] linux-4.9 security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html","name":"openSUSE-SU-2019:1407","refsource":"SUSE","tags":[],"title":"[security-announce] openSUSE-SU-2019:1407-1: important: Security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/105120","name":"105120","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"Linux Kernel 'arch/x86/kernel/paravirt.c' Local Security Bypass Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://access.redhat.com/errata/RHSA-2019:2029","name":"RHSA-2019:2029","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2019:2043","name":"RHSA-2019:2043","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3776-2/","name":"USN-3776-2","refsource":"UBUNTU","tags":["Third Party Advisory"],"title":"USN-3776-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3776-1/","name":"USN-3776-1","refsource":"UBUNTU","tags":["Third Party Advisory"],"title":"USN-3776-1: Linux kernel vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3777-3/","name":"USN-3777-3","refsource":"UBUNTU","tags":["Third Party Advisory"],"title":"USN-3777-3: Linux kernel (Azure) vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafd","name":"https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafd","refsource":"MISC","tags":["Mitigation","Patch","Third Party Advisory"],"title":"x86/paravirt: Fix spectre-v2 mitigations for paravirt guests · torvalds/linux@5800dc5 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3775-1/","name":"USN-3775-1","refsource":"UBUNTU","tags":["Third Party Advisory"],"title":"USN-3775-1: Linux kernel vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3777-2/","name":"USN-3777-2","refsource":"UBUNTU","tags":["Third Party Advisory"],"title":"USN-3777-2: Linux kernel (HWE) vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3777-1/","name":"USN-3777-1","refsource":"UBUNTU","tags":["Third Party Advisory"],"title":"USN-3777-1: Linux kernel vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://twitter.com/grsecurity/status/1029324426142199808","name":"https://twitter.com/grsecurity/status/1029324426142199808","refsource":"MISC","tags":["Third Party Advisory"],"title":"grsecurity on Twitter: \"This should get a CVE: https://t.co/xr3icM7K2n\"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1","name":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1","refsource":"MISC","tags":["Release Notes","Vendor Advisory"],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"200"},{"url":"https://usn.ubuntu.com/3775-2/","name":"USN-3775-2","refsource":"UBUNTU","tags":["Third Party Advisory"],"title":"USN-3775-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securitytracker.com/id/1041601","name":"1041601","refsource":"SECTRACK","tags":["Third Party Advisory","VDB Entry"],"title":"Linux Kernel paravirt_patch_call Indirect Call Processing Lets Local Users View Portions of System Memory for Paravirtualized Guests - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.debian.org/security/2018/dsa-4308","name":"DSA-4308","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-4308-1 linux","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafd","name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafd","refsource":"MISC","tags":["Mitigation","Patch","Vendor Advisory"],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-15594","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-15594","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"12.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"esm","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"14.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"16.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"18.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"12.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"esm","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"14.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"16.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"18.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"15594","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2018-15594","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"USN-3776-1","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3776-1/"},{"name":"https://twitter.com/grsecurity/status/1029324426142199808","refsource":"MISC","url":"https://twitter.com/grsecurity/status/1029324426142199808"},{"name":"USN-3776-2","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3776-2/"},{"name":"USN-3777-1","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3777-1/"},{"name":"USN-3775-1","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3775-1/"},{"name":"[debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update","refsource":"MLIST","url":"https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html"},{"name":"https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafd","refsource":"MISC","url":"https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafd"},{"name":"DSA-4308","refsource":"DEBIAN","url":"https://www.debian.org/security/2018/dsa-4308"},{"name":"USN-3775-2","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3775-2/"},{"name":"105120","refsource":"BID","url":"http://www.securityfocus.com/bid/105120"},{"name":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1","refsource":"MISC","url":"https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1"},{"name":"1041601","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1041601"},{"name":"USN-3777-2","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3777-2/"},{"name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafd","refsource":"MISC","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafd"},{"name":"USN-3777-3","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3777-3/"},{"refsource":"SUSE","name":"openSUSE-SU-2019:1407","url":"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html"},{"refsource":"REDHAT","name":"RHSA-2019:2043","url":"https://access.redhat.com/errata/RHSA-2019:2043"},{"refsource":"REDHAT","name":"RHSA-2019:2029","url":"https://access.redhat.com/errata/RHSA-2019:2029"}]}},"nvd":{"publishedDate":"2018-08-20 08:29:00","lastModifiedDate":"2019-10-03 00:03:00","problem_types":["CWE-200"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"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},"severity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.18.1","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"15594","Ordinal":"132329","Title":"CVE-2018-15594","CVE":"CVE-2018-15594","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"15594","Ordinal":"1","NoteData":"arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"15594","Ordinal":"2","NoteData":"2018-08-20","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"15594","Ordinal":"3","NoteData":"2019-08-06","Type":"Other","Title":"Modified"}]}}}