fkie_cve-2016-2383
Vulnerability from fkie_nvd
Published
2016-04-27 17:59
Modified
2025-04-12 10:46
Severity ?
Summary
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.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | 4.5.0 | |
linux | linux_kernel | 4.5.0 | |
linux | linux_kernel | 4.5.0 | |
canonical | ubuntu_linux | 14.04 | |
canonical | ubuntu_linux | 15.10 | |
opensuse | leap | 42.1 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8B6177A4-8E9B-448D-A6C1-1F88863DE391", "versionEndExcluding": "4.5.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:4.5.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "2BEB8150-FFE5-47FA-A056-9029F00744AA", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:4.5.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "1D74F82A-BF09-477E-A12B-6E8ED832486E", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:4.5.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "57CCE12F-9DF0-4378-ABAA-BF94A361E569", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "matchCriteriaId": "815D70A8-47D3-459C-A32C-9FEACA0659D1", "vulnerable": true }, { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*", "matchCriteriaId": "E88A537F-F4D0-46B9-9E37-965233C2A355", "vulnerable": true }, { "criteria": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*", "matchCriteriaId": "4863BE36-D16A-4D75-90D9-FD76DB5B48B7", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "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." } ], "id": "CVE-2016-2383", "lastModified": "2025-04-12T10:46:40.837", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "LOW", "cvssData": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2016-04-27T17:59:10.943", "references": [ { "source": "security@debian.org", "tags": [ "Patch", "Vendor Advisory" ], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1b14d27ed0965838350f1377ff97c93ee383492" }, { "source": "security@debian.org", "tags": [ "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html" }, { "source": "security@debian.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2016/02/14/1" }, { "source": "security@debian.org", "tags": [ "Third Party Advisory" ], "url": "http://www.ubuntu.com/usn/USN-2947-1" }, { "source": "security@debian.org", "tags": [ "Third Party Advisory" ], "url": "http://www.ubuntu.com/usn/USN-2947-2" }, { "source": "security@debian.org", "tags": [ "Third Party Advisory" ], "url": "http://www.ubuntu.com/usn/USN-2947-3" }, { "source": "security@debian.org", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1308452" }, { "source": "security@debian.org", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Vendor Advisory" ], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1b14d27ed0965838350f1377ff97c93ee383492" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2016/02/14/1" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "http://www.ubuntu.com/usn/USN-2947-1" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "http://www.ubuntu.com/usn/USN-2947-2" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ], "url": "http://www.ubuntu.com/usn/USN-2947-3" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1308452" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492" } ], "sourceIdentifier": "security@debian.org", "vulnStatus": "Deferred", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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