{"api_version":"1","generated_at":"2026-04-23T08:38:28+00:00","cve":"CVE-2015-8844","urls":{"html":"https://cve.report/CVE-2015-8844","api":"https://cve.report/api/cve/CVE-2015-8844.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2015-8844","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-8844"},"summary":{"title":"CVE-2015-8844","description":"The signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service (TM Bad Thing exception and panic) via a crafted application.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2016-04-27 17:59:00","updated_at":"2018-01-05 02:30:00"},"problem_types":["CWE-20"],"metrics":[],"references":[{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d2b9d2a5ad5ef04ff978c9923d19730cb05efd55","name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d2b9d2a5ad5ef04ff978c9923d19730cb05efd55","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2574.html","name":"RHSA-2016:2574","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"-1","archivestatus":"200"},{"url":"http://www.securitytracker.com/id/1035594","name":"1035594","refsource":"SECTRACK","tags":[],"title":"Linux Kernel powerpc Bugs Lets Local Users Cause Denial of Service Conditions on the Target System - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/torvalds/linux/commit/d2b9d2a5ad5ef04ff978c9923d19730cb05efd55","name":"https://github.com/torvalds/linux/commit/d2b9d2a5ad5ef04ff978c9923d19730cb05efd55","refsource":"CONFIRM","tags":[],"title":"powerpc/tm: Block signal return setting invalid MSR state · torvalds/linux@d2b9d2a · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.openwall.com/lists/oss-security/2016/04/13/1","name":"[oss-security] 20160413 CVE Request: Linux kernel: incorrect restoration of machine specific registers from signal handler.","refsource":"MLIST","tags":[],"title":"oss-security - CVE Request: Linux kernel: incorrect restoration of machine specific\n registers from signal handler.","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1326540","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1326540","refsource":"CONFIRM","tags":[],"title":"1326540 – (CVE-2015-8844, CVE-2015-8845) CVE-2015-8845 CVE-2015-8844 kernel: incorrect restoration of machine specific registers from userspace","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5","name":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5","refsource":"CONFIRM","tags":[],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"200"},{"url":"http://rhn.redhat.com/errata/RHSA-2016-2584.html","name":"RHSA-2016:2584","refsource":"REDHAT","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"-1","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-8844","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-8844","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2015","cve_id":"8844","vulnerable":"1","versionEndIncluding":"4.3.4","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":[{"cve":"CVE-2015-8844","qid":"671064","title":"EulerOS Security Update for kernel (EulerOS-SA-2019-2599)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2015-8844","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":"The signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service (TM Bad Thing exception and panic) via a crafted application."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5","refsource":"CONFIRM","url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5"},{"name":"[oss-security] 20160413 CVE Request: Linux kernel: incorrect restoration of machine specific registers from signal handler.","refsource":"MLIST","url":"http://www.openwall.com/lists/oss-security/2016/04/13/1"},{"name":"RHSA-2016:2584","refsource":"REDHAT","url":"http://rhn.redhat.com/errata/RHSA-2016-2584.html"},{"name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d2b9d2a5ad5ef04ff978c9923d19730cb05efd55","refsource":"CONFIRM","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d2b9d2a5ad5ef04ff978c9923d19730cb05efd55"},{"name":"RHSA-2016:2574","refsource":"REDHAT","url":"http://rhn.redhat.com/errata/RHSA-2016-2574.html"},{"name":"1035594","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1035594"},{"name":"https://github.com/torvalds/linux/commit/d2b9d2a5ad5ef04ff978c9923d19730cb05efd55","refsource":"CONFIRM","url":"https://github.com/torvalds/linux/commit/d2b9d2a5ad5ef04ff978c9923d19730cb05efd55"},{"name":"https://bugzilla.redhat.com/show_bug.cgi?id=1326540","refsource":"CONFIRM","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1326540"}]}},"nvd":{"publishedDate":"2016-04-27 17:59:00","lastModifiedDate":"2018-01-05 02:30:00","problem_types":["CWE-20"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","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:M/Au:N/C:N/I:N/A:C","accessVector":"LOCAL","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE","baseScore":4.7},"severity":"MEDIUM","exploitabilityScore":3.4,"impactScore":6.9,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndIncluding":"4.3.4","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2015","CveId":"8844","Ordinal":"89900","Title":"CVE-2015-8844","CVE":"CVE-2015-8844","Year":"2015"},"notes":[{"CveYear":"2015","CveId":"8844","Ordinal":"1","NoteData":"The signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service (TM Bad Thing exception and panic) via a crafted application.","Type":"Description","Title":null},{"CveYear":"2015","CveId":"8844","Ordinal":"2","NoteData":"2016-04-27","Type":"Other","Title":"Published"},{"CveYear":"2015","CveId":"8844","Ordinal":"3","NoteData":"2018-01-04","Type":"Other","Title":"Modified"}]}}}