PT-2017-18732 · Linux+3 · Linux Kernel+3
Jann Horn
·
Publicado
2017-04-13
·
Atualizado
2018-07-09
·
CVE-2017-9150
CVSS v3.1
5.5
Média
| Vetor | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.11.1
Description
The issue concerns the do check function in the Linux kernel, which fails to restrict the output of sensitive address information. This allows local users to obtain sensitive address information via crafted bpf system calls. The
do check function in kernel/bpf/verifier.c is specifically implicated, as it does not make the allow ptr leaks value available for restricting the output of the print bpf insn function.Recommendations
For Linux kernel versions prior to 4.11.1, update to version 4.11.1 or later to resolve the issue.
Exploit
Correção
Information Disclosure
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Linux Kernel
Suse
Ubuntu