fkie_cve-2021-4135
Vulnerability from fkie_nvd
Published
2022-07-14 20:15
Modified
2024-11-21 06:36
Severity ?
Summary
A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this flaw to get unauthorized access to some data.
References
▶ | URL | Tags | |
---|---|---|---|
secalert@redhat.com | https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53 | Mailing List, Patch, Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53 | Mailing List, Patch, Vendor Advisory |
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * | |
linux | linux_kernel | 5.16 | |
linux | linux_kernel | 5.16 | |
linux | linux_kernel | 5.16 | |
linux | linux_kernel | 5.16 | |
linux | linux_kernel | 5.16 | |
linux | linux_kernel | 5.16 |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D692A2AE-8E9E-46AE-8670-7E1284317A25", "versionEndExcluding": "5.16", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:*", "matchCriteriaId": "FF588A58-013F-4DBF-A3AB-70EC054B1892", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*", "matchCriteriaId": "357AA433-37E8-4323-BFB2-3038D6E4B414", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*", "matchCriteriaId": "A73429BA-C2D9-4D0C-A75F-06A1CA8B3983", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*", "matchCriteriaId": "F621B5E3-E99D-49E7-90B9-EC3B77C95383", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*", "matchCriteriaId": "F7BFDCAA-1650-49AA-8462-407DD593F94F", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:*", "matchCriteriaId": "6EC9882F-866D-4ACB-8FBC-213D8D8436C8", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "A memory leak vulnerability was found in the Linux kernel\u0027s eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this flaw to get unauthorized access to some data." }, { "lang": "es", "value": "Se ha encontrado una vulnerabilidad de p\u00e9rdida de memoria en el eBPF del kernel de Linux para el controlador del dispositivo de red simulado en la forma en que el usuario usa el BPF para el dispositivo, de manera que es llamado a la funci\u00f3n nsim_map_alloc_elem. Un usuario local podr\u00eda usa este fallo para conseguir acceso no autorizado a algunos datos" } ], "id": "CVE-2021-4135", "lastModified": "2024-11-21T06:36:58.700", "metrics": { "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": "2022-07-14T20:15:08.360", "references": [ { "source": "secalert@redhat.com", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-200" } ], "source": "secalert@redhat.com", "type": "Secondary" }, { "description": [ { "lang": "en", "value": "CWE-401" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
Loading…
Loading…
Sightings
Author | Source | Type | Date |
---|
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.
Loading…
Loading…