ghsa-wqqm-p6gj-wr83
Vulnerability from github
Published
2022-05-24 17:43
Modified
2023-06-30 18:31
Severity ?
Details
An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
{ "affected": [], "aliases": [ "CVE-2021-20268" ], "database_specific": { "cwe_ids": [ "CWE-190", "CWE-20" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-03-09T18:15:00Z", "severity": "HIGH" }, "details": "An out-of-bounds access flaw was found in the Linux kernel\u0027s implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.", "id": "GHSA-wqqm-p6gj-wr83", "modified": "2023-06-30T18:31:00Z", "published": "2022-05-24T17:43:54Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20268" }, { "type": "WEB", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1923816" }, { "type": "WEB", "url": "https://lore.kernel.org/bpf/CACAyw99bEYWJCSGqfLiJ9Jp5YE1ZsZSiJxb4RFUTwbofipf0dA@mail.gmail.com/T/#m8929643e99bea9c18ed490a7bc2591145eac6444" }, { "type": "WEB", "url": "https://security.netapp.com/advisory/ntap-20210409-0006" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "type": "CVSS_V3" } ] }
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Sightings
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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.