CVE-2018-12896

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/torvalds/linux/commit/78c9c4dfbf8c04883941445a195276bb4bb92c76", "name": "https://github.com/torvalds/linux/commit/78c9c4dfbf8c04883941445a195276bb4bb92c76", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/lcytxw/bug_repro/tree/master/bug_200189", "name": "https://github.com/lcytxw/bug_repro/tree/master/bug_200189", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://bugzilla.kernel.org/show_bug.cgi?id=200189", "name": "https://bugzilla.kernel.org/show_bug.cgi?id=200189", "tags": ["Issue Tracking", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://usn.ubuntu.com/3849-2/", "name": "USN-3849-2", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3848-2/", "name": "USN-3848-2", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3848-1/", "name": "USN-3848-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3847-3/", "name": "USN-3847-3", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3847-2/", "name": "USN-3847-2", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3847-1/", "name": "USN-3847-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3849-1/", "name": "USN-3849-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html", "name": "[debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html", "name": "[debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html", "name": "[debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An issue was discovered in the Linux kernel through 4.17.3. An Integer Overflow in kernel/time/posix-timers.c in the POSIX timer code is caused by the way the overrun accounting works. Depending on interval and expiry time values, the overrun can be larger than INT_MAX, but the accounting is int based. This basically makes the accounting values, which are visible to user space via timer_getoverrun(2) and siginfo::si_overrun, random. For example, a local user can cause a denial of service (signed integer overflow) via crafted mmap, futex, timer_create, and timer_settime system calls."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-190"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-12896", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}}, "publishedDate": "2018-07-02T17:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.17.3"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*", "cpe_name": [], "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:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2019-04-03T12:04Z"}