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CVE-2021-20268
HIGH7.8
Descricao
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.
Detalhes CVE
Pontuacao CVSS v3.17.8
SeveridadeHIGH
Vetor CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vetor de ataqueLOCAL
ComplexidadeLOW
Privilegios necessariosLOW
Interacao do usuarioNONE
Publicado3/9/2021
Ultima modificacao11/21/2024
Fontenvd
Avistamentos honeypot0
Produtos afetados
linux:linux_kernel
Fraquezas (CWE)
CWE-20CWE-190
Referencias
https://bugzilla.redhat.com/show_bug.cgi?id=1923816(secalert@redhat.com)
https://lore.kernel.org/bpf/CACAyw99bEYWJCSGqfLiJ9Jp5YE1ZsZSiJxb4RFUTwbofipf0dA%40mail.gmail.com/T/#m8929643e99bea9c18ed490a7bc2591145eac6444(secalert@redhat.com)
https://security.netapp.com/advisory/ntap-20210409-0006/(secalert@redhat.com)
https://bugzilla.redhat.com/show_bug.cgi?id=1923816(af854a3a-2127-422b-91ae-364da2661108)
https://lore.kernel.org/bpf/CACAyw99bEYWJCSGqfLiJ9Jp5YE1ZsZSiJxb4RFUTwbofipf0dA%40mail.gmail.com/T/#m8929643e99bea9c18ed490a7bc2591145eac6444(af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20210409-0006/(af854a3a-2127-422b-91ae-364da2661108)
Correlacoes IOC
Sem correlacoes registradas
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