CVE-2016-2383

{"id": "CVE-2016-2383", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2016-04-27T17:59:10.943", "references": [{"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1b14d27ed0965838350f1377ff97c93ee383492", "tags": ["Patch", "Vendor Advisory"], "source": "security@debian.org"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html", "tags": ["Third Party Advisory"], "source": "security@debian.org"}, {"url": "http://www.openwall.com/lists/oss-security/2016/02/14/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "security@debian.org"}, {"url": "http://www.ubuntu.com/usn/USN-2947-1", "tags": ["Third Party Advisory"], "source": "security@debian.org"}, {"url": "http://www.ubuntu.com/usn/USN-2947-2", "tags": ["Third Party Advisory"], "source": "security@debian.org"}, {"url": "http://www.ubuntu.com/usn/USN-2947-3", "tags": ["Third Party Advisory"], "source": "security@debian.org"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1308452", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "security@debian.org"}, {"url": "https://github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492", "tags": ["Patch", "Third Party Advisory"], "source": "security@debian.org"}, {"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1b14d27ed0965838350f1377ff97c93ee383492", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2016/02/14/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-2947-1", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-2947-2", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.ubuntu.com/usn/USN-2947-3", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1308452", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions."}, {"lang": "es", "value": "La funci\u00f3n adjust_branches en kernel/bpf/verifier.c en el kernel de Linux en versiones anteriores a 4.5 no tiene en cuenta el delta en el caso de salto de retroceso, lo que permite a usuarios locales obtener informaci\u00f3n sensible del kernel de memoria creando un filtro de paquetes y posteriormente cargando instrucciones BPF manipuladas."}], "lastModified": "2025-04-12T10:46:40.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8B6177A4-8E9B-448D-A6C1-1F88863DE391", "versionEndExcluding": "4.5.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.5.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2BEB8150-FFE5-47FA-A056-9029F00744AA"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.5.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D74F82A-BF09-477E-A12B-6E8ED832486E"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.5.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "57CCE12F-9DF0-4378-ABAA-BF94A361E569"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "vulnerable": true, "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E88A537F-F4D0-46B9-9E37-965233C2A355"}, {"criteria": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4863BE36-D16A-4D75-90D9-FD76DB5B48B7"}], "operator": "OR"}]}], "sourceIdentifier": "security@debian.org"}