PT-2012-1244 · Linux+3 · Linux Kernel+3
Paolo Bonzini
+1
·
Publicado
2012-08-21
·
Atualizado
2026-03-13
·
CVE-2012-4542
CVSS v2.0
4.6
Média
| Vetor | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 3.9
Description
The issue is related to the
scsi ioctl function in the Linux kernel, which does not properly consider the SCSI device class during authorization of SCSI commands. This allows local users to bypass intended access restrictions via an SG IO ioctl call that leverages overlapping opcodes. The vulnerability can be exploited to elevate privileges.Recommendations
For Linux kernel versions prior to 3.9, update to a version 3.9 or later to resolve the issue.
As a temporary workaround, consider restricting access to the SG IO ioctl call to minimize the risk of exploitation.
Correção
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Centos
Debian
Linux Kernel
Red Hat