{ "data_type": "CVE", "data_format": "MITRE", "data_version": "4.0", "CVE_data_meta": { "ID": "CVE-2021-20268", "ASSIGNER": "secalert@redhat.com", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "n/a", "product": { "product_data": [ { "product_name": "kernel", "version": { "version_data": [ { "version_value": "kernel 5.10.10" } ] } } ] } } ] } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-20" } ] } ] }, "references": { "reference_data": [ { "refsource": "MISC", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1923816", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1923816" }, { "refsource": "MISC", "name": "https://lore.kernel.org/bpf/CACAyw99bEYWJCSGqfLiJ9Jp5YE1ZsZSiJxb4RFUTwbofipf0dA@mail.gmail.com/T/#m8929643e99bea9c18ed490a7bc2591145eac6444", "url": "https://lore.kernel.org/bpf/CACAyw99bEYWJCSGqfLiJ9Jp5YE1ZsZSiJxb4RFUTwbofipf0dA@mail.gmail.com/T/#m8929643e99bea9c18ed490a7bc2591145eac6444" }, { "refsource": "CONFIRM", "name": "https://security.netapp.com/advisory/ntap-20210409-0006/", "url": "https://security.netapp.com/advisory/ntap-20210409-0006/" } ] }, "description": { "description_data": [ { "lang": "eng", "value": "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." } ] } }