| Revision Date: | 2013-04-29 | Version: | 11 | | Title: | The Linux kernel before 2.6.16.9 and the FreeBSD kernel, when running on AMD64 and other 7th and 8th generation AuthenticAMD processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one process to determine portions of the state of floating point instructions of other processes, which can be leveraged to obtain sensitive information such as cryptographic keys. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processers in a security-relevant fashion that was not addressed by the kernels. | | Description: | The Linux kernel before 2.6.16.9 and the FreeBSD kernel, when running on AMD64 and other 7th and 8th generation AuthenticAMD processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one process to determine portions of the state of floating point instructions of other processes, which can be leveraged to obtain sensitive information such as cryptographic keys. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processers in a security-relevant fashion that was not addressed by the kernels. | | Family: | unix | Class: | vulnerability | | Status: | ACCEPTED | Reference(s): | CVE-2006-1056
| | Platform(s): | CentOS Linux 3
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 3
Red Hat Enterprise Linux 4
| Product(s): | | | Definition Synopsis | | OS Section: RHEL3, CentOS3 RHEL3 or CentOS3
The operating system installed on the system is Red Hat Enterprise Linux 3
OR CentOS Linux 3.x
AND Configuration section
kernel-BOOT is earlier than 0:2.4.21-47.EL
OR kernel-unsupported is earlier than 0:2.4.21-47.EL
OR kernel-smp-unsupported is earlier than 0:2.4.21-47.EL
OR kernel-hugemem-unsupported is earlier than 0:2.4.21-47.EL
OR kernel-hugemem is earlier than 0:2.4.21-47.EL
OR kernel is earlier than 0:2.4.21-47.EL
OR kernel-source is earlier than 0:2.4.21-47.EL
OR kernel-doc is earlier than 0:2.4.21-47.EL
OR kernel-smp is earlier than 0:2.4.21-47.EL
OR OS Section: RHEL4, CentOS4, Oracle Linux 4
RHEL4, CentOS4 or Oracle Linux 4
The operating system installed on the system is Red Hat Enterprise Linux 4
OR CentOS Linux 4.x
OR Oracle Linux 4.x
AND Configuration section
kernel-hugemem is earlier than 0:2.6.9-42.EL
OR kernel-hugemem-devel is earlier than 0:2.6.9-42.EL
OR kernel-smp-devel is earlier than 0:2.6.9-42.EL
OR kernel-largesmp-devel is earlier than 0:2.6.9-42.EL
OR kernel is earlier than 0:2.6.9-42.EL
OR kernel-devel is earlier than 0:2.6.9-42.EL
OR kernel-doc is earlier than 0:2.6.9-42.EL
OR kernel-largesmp is earlier than 0:2.6.9-42.EL
OR kernel-smp is earlier than 0:2.6.9-42.EL
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