{"api_version":"1","generated_at":"2026-07-23T19:40:18+00:00","cve":"CVE-2016-2085","urls":{"html":"https://cve.report/CVE-2016-2085","api":"https://cve.report/api/cve/CVE-2016-2085.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2016-2085","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-2085"},"summary":{"title":"CVE-2016-2085","description":"The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack.","state":"PUBLISHED","assigner":"mitre","published_at":"2016-04-27 17:59:07","updated_at":"2026-05-06 22:30:45"},"problem_types":["CWE-19","n/a"],"metrics":[{"version":"3.0","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","data":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"2.1","severity":"","vector":"AV:L/AC:L/Au:N/C:N/I:P/A:N","data":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:P/A:N","baseScore":2.1,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"}}],"references":[{"url":"http://www.ubuntu.com/usn/USN-2947-2","name":"http://www.ubuntu.com/usn/USN-2947-2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-2947-2: Linux kernel (Wily HWE) vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-2085","name":"https://security-tracker.debian.org/tracker/CVE-2016-2085","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"CVE-2016-2085","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/USN-2949-1","name":"http://www.ubuntu.com/usn/USN-2949-1","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-2949-1: Linux kernel (Vivid HWE) vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1324867","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1324867","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"1324867 – (CVE-2016-2085) CVE-2016-2085 kernel: timing side channel vulnerability in the Linux Extended Verification Module","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/USN-2947-1","name":"http://www.ubuntu.com/usn/USN-2947-1","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-2947-1: Linux kernel vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1","name":"https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"title":"EVM: Use crypto_memneq() for digest comparisons · torvalds/linux@613317b · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html","name":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"CVE-2016-2085 in Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/USN-2946-1","name":"http://www.ubuntu.com/usn/USN-2946-1","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-2946-1: Linux kernel vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/USN-2947-3","name":"http://www.ubuntu.com/usn/USN-2947-3","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-2947-3: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/USN-2948-2","name":"http://www.ubuntu.com/usn/USN-2948-2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-2948-2: Linux kernel (Utopic HWE) regression | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/USN-2946-2","name":"http://www.ubuntu.com/usn/USN-2946-2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-2946-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1","name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"title":"kernel/git/torvalds/linux.git - Linux kernel source tree","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/USN-2948-1","name":"http://www.ubuntu.com/usn/USN-2948-1","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-2948-1: Linux kernel (Utopic HWE) vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-2085","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-2085","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2016","cve_id":"2085","vulnerable":"1","versionEndIncluding":"4.4.8","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":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-05T23:17:50.339Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"USN-2949-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/USN-2949-1"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1324867"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://security-tracker.debian.org/tracker/CVE-2016-2085"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1"},{"name":"USN-2947-3","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/USN-2947-3"},{"name":"USN-2947-2","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/USN-2947-2"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html"},{"name":"USN-2947-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/USN-2947-1"},{"name":"USN-2946-2","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/USN-2946-2"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1"},{"name":"USN-2948-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/USN-2948-1"},{"name":"USN-2946-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/USN-2946-1"},{"name":"USN-2948-2","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/USN-2948-2"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2016-04-27T00:00:00.000Z","descriptions":[{"lang":"en","value":"The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2016-11-30T20:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"USN-2949-1","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/USN-2949-1"},{"tags":["x_refsource_CONFIRM"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1324867"},{"tags":["x_refsource_CONFIRM"],"url":"https://security-tracker.debian.org/tracker/CVE-2016-2085"},{"tags":["x_refsource_CONFIRM"],"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1"},{"name":"USN-2947-3","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/USN-2947-3"},{"name":"USN-2947-2","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/USN-2947-2"},{"tags":["x_refsource_CONFIRM"],"url":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html"},{"name":"USN-2947-1","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/USN-2947-1"},{"name":"USN-2946-2","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/USN-2946-2"},{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1"},{"name":"USN-2948-1","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/USN-2948-1"},{"name":"USN-2946-1","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/USN-2946-1"},{"name":"USN-2948-2","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/USN-2948-2"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2016-2085","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 evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"USN-2949-1","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-2949-1"},{"name":"https://bugzilla.redhat.com/show_bug.cgi?id=1324867","refsource":"CONFIRM","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1324867"},{"name":"https://security-tracker.debian.org/tracker/CVE-2016-2085","refsource":"CONFIRM","url":"https://security-tracker.debian.org/tracker/CVE-2016-2085"},{"name":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1","refsource":"CONFIRM","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=613317bd212c585c20796c10afe5daaa95d4b0a1"},{"name":"USN-2947-3","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-2947-3"},{"name":"USN-2947-2","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-2947-2"},{"name":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html","refsource":"CONFIRM","url":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2085.html"},{"name":"USN-2947-1","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-2947-1"},{"name":"USN-2946-2","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-2946-2"},{"name":"https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1","refsource":"CONFIRM","url":"https://github.com/torvalds/linux/commit/613317bd212c585c20796c10afe5daaa95d4b0a1"},{"name":"USN-2948-1","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-2948-1"},{"name":"USN-2946-1","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-2946-1"},{"name":"USN-2948-2","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-2948-2"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2016-2085","datePublished":"2016-04-27T17:00:00.000Z","dateReserved":"2016-01-27T00:00:00.000Z","dateUpdated":"2024-08-05T23:17:50.339Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2016-04-27 17:59:07","lastModifiedDate":"2026-05-06 22:30:45","problem_types":["CWE-19","n/a"],"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:U/C:N/I:H/A:N","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.8,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:P/A:N","baseScore":2.1,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndIncluding":"4.4.8","matchCriteriaId":"3E43C27F-72D6-4615-8337-67245A069FFD"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2016","CveId":"2085","Ordinal":"1","Title":"CVE-2016-2085","CVE":"CVE-2016-2085","Year":"2016"},"notes":[{"CveYear":"2016","CveId":"2085","Ordinal":"1","NoteData":"The evm_verify_hmac function in security/integrity/evm/evm_main.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack.","Type":"Description","Title":"CVE-2016-2085"},{"CveYear":"2016","CveId":"2085","Ordinal":"2","NoteData":"2016-04-27","Type":"Other","Title":"Published"},{"CveYear":"2016","CveId":"2085","Ordinal":"3","NoteData":"2016-11-30","Type":"Other","Title":"Modified"}]}}}