CVEvulnerability

CVE-2006-1056

2.1 LOW Published 2006-04-20 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2006-04-20
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-310

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 processors in a security-relevant fashion that was not addressed by the kernels.

Affected configurations

• freebsd freebsd • linux linux kernel (<= 2.6.16.8) • linux linux kernel 2.6.0 • linux linux kernel 2.6.1 • linux linux kernel 2.6.2 • linux linux kernel 2.6.3 • linux linux kernel 2.6.4 • linux linux kernel 2.6.5 • linux linux kernel 2.6.6 • linux linux kernel 2.6.7 • linux linux kernel 2.6.8 • linux linux kernel 2.6.9 • linux linux kernel 2.6.10 • linux linux kernel 2.6.11 • linux linux kernel 2.6.11.1 • linux linux kernel 2.6.11.2 • linux linux kernel 2.6.11.3 • linux linux kernel 2.6.11.4 • linux linux kernel 2.6.11.5 • linux linux kernel 2.6.11.6 • linux linux kernel 2.6.11.7 • linux linux kernel 2.6.11.8 • linux linux kernel 2.6.11.9 • linux linux kernel 2.6.11.10 • linux linux kernel 2.6.11.11 • linux linux kernel 2.6.11.12 • linux linux kernel 2.6.12 • linux linux kernel 2.6.12.1 • linux linux kernel 2.6.12.2 • linux linux kernel 2.6.12.3 • linux linux kernel 2.6.12.4 • linux linux kernel 2.6.12.5 • linux linux kernel 2.6.12.6 • linux linux kernel 2.6.13 • linux linux kernel 2.6.13.1 • linux linux kernel 2.6.13.2 • linux linux kernel 2.6.13.3 • linux linux kernel 2.6.13.4 • linux linux kernel 2.6.14 • linux linux kernel 2.6.14.1 • linux linux kernel 2.6.14.2 • linux linux kernel 2.6.14.3 • linux linux kernel 2.6.14.4 • linux linux kernel 2.6.14.5 • linux linux kernel 2.6.14.6 • linux linux kernel 2.6.14.7 • linux linux kernel 2.6.15 • linux linux kernel 2.6.15.1 • linux linux kernel 2.6.15.2 • linux linux kernel 2.6.15.3 • linux linux kernel 2.6.15.4 • linux linux kernel 2.6.15.5 • linux linux kernel 2.6.15.6 • linux linux kernel 2.6.15.7 • linux linux kernel 2.6.16 • linux linux kernel 2.6.16.1 • linux linux kernel 2.6.16.2 • linux linux kernel 2.6.16.3 • linux linux kernel 2.6.16.4 • linux linux kernel 2.6.16.5 … and 4 more

Related

Weakness · not in database (1)

References