{"api_version":"1","generated_at":"2026-07-23T09:29:50+00:00","cve":"CVE-2018-1091","urls":{"html":"https://cve.report/CVE-2018-1091","api":"https://cve.report/api/cve/CVE-2018-1091.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-1091","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-1091"},"summary":{"title":"CVE-2018-1091","description":"In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.","state":"PUBLIC","assigner":"secalert@redhat.com","published_at":"2018-03-27 21:29:00","updated_at":"2018-05-10 01:29:00"},"problem_types":["CWE-119"],"metrics":[],"references":[{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70","name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70","refsource":"CONFIRM","tags":["Patch","Vendor Advisory"],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1558149","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1558149","refsource":"CONFIRM","tags":["Issue Tracking","Third Party Advisory"],"title":"1558149 – (CVE-2018-1091) CVE-2018-1091 kernel: guest kernel crash during core dump on POWER9 host","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2","name":"https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2","refsource":"CONFIRM","tags":["Patch","Third Party Advisory"],"title":"'[PATCH v2] powerpc/tm: Flush TM only if CPU has TM feature' - MARC","mime":"text/x-diff","httpstatus":"200","archivestatus":"200"},{"url":"http://openwall.com/lists/oss-security/2018/03/27/4","name":"http://openwall.com/lists/oss-security/2018/03/27/4","refsource":"CONFIRM","tags":["Mailing List","Third Party Advisory"],"title":"oss-security - CVE-2018-1091: Linux kernel: a KVM guest kernel crash during core\n dump on POWER9 host","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70","name":"https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70","refsource":"CONFIRM","tags":["Patch","Third Party Advisory"],"title":"powerpc/tm: Flush TM only if CPU has TM feature · torvalds/linux@c1fa076 · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/security/cve/cve-2018-1091","name":"https://access.redhat.com/security/cve/cve-2018-1091","refsource":"CONFIRM","tags":["Third Party Advisory"],"title":"CVE-2018-1091 - Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2018:1318","name":"RHSA-2018:1318","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5","name":"https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5","refsource":"CONFIRM","tags":["Patch","Vendor Advisory"],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-1091","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1091","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"1091","vulnerable":"1","versionEndIncluding":"4.13.4","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":"secalert@redhat.com","ID":"CVE-2018-1091","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Linux kernel v4.13 and newer","version":{"version_data":[{"version_value":"Linux kernel v4.13 and newer"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-391"}]}]},"references":{"reference_data":[{"name":"https://bugzilla.redhat.com/show_bug.cgi?id=1558149","refsource":"CONFIRM","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1558149"},{"name":"https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5","refsource":"CONFIRM","url":"https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5"},{"name":"https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2","refsource":"CONFIRM","url":"https://marc.info/?l=linuxppc-embedded&m=150535531910494&w=2"},{"name":"https://access.redhat.com/security/cve/cve-2018-1091","refsource":"CONFIRM","url":"https://access.redhat.com/security/cve/cve-2018-1091"},{"name":"RHSA-2018:1318","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2018:1318"},{"name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70","refsource":"CONFIRM","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1fa0768a8713b135848f78fd43ffc208d8ded70"},{"name":"https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70","refsource":"CONFIRM","url":"https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70"},{"name":"http://openwall.com/lists/oss-security/2018/03/27/4","refsource":"CONFIRM","url":"http://openwall.com/lists/oss-security/2018/03/27/4"}]}},"nvd":{"publishedDate":"2018-03-27 21:29:00","lastModifiedDate":"2018-05-10 01:29:00","problem_types":["CWE-119"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:C","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE","baseScore":4.9},"severity":"MEDIUM","exploitabilityScore":3.9,"impactScore":6.9,"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:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndIncluding":"4.13.4","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"1091","Ordinal":"116322","Title":"CVE-2018-1091","CVE":"CVE-2018-1091","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"1091","Ordinal":"1","NoteData":"In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"1091","Ordinal":"2","NoteData":"2018-03-27","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"1091","Ordinal":"3","NoteData":"2018-05-09","Type":"Other","Title":"Modified"}]}}}