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.
CVSS Details
- CVSS 3.1 Base Score: 5.5
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade FreeBSD | Dec 10, 2025 | Apr 19, 2006 |
| Suse | — | Upgrade xen-doc-pdfUpgrade xen-kmp-traceUpgrade xen-kmp-paeUpgrade xen-kmp-defaultUpgrade xen-toolsUpgrade xen-libsUpgrade xen-tools-domUUpgrade xenUpgrade xen-doc-html | Feb 17, 2015 | Jun 27, 2013 |
| Ubuntu | — | Upgrade linux-386Upgrade linux-power4Upgrade nvidia-glx-legacy-devUpgrade linux-powerpcUpgrade linux-686-smpUpgrade linux-restricted-modules-2.6.15-25-amd64-genericUpgrade linux-restricted-modules-686Upgrade nvidia-glxUpgrade linux-source-2.6.15Upgrade linux-image-2.6.10-6-686Upgrade linux-image-2.6.15-25-powerpcUpgrade linux-image-2.6.10-6-power3Upgrade linux-image-amd64-k8Upgrade linux-image-2.6.10-6-amd64-xeonUpgrade xorg-driver-fglrxUpgrade linux-image-2.6.15-25-powerpc64-smpUpgrade linux-image-power4Upgrade linux-restricted-modules-powerpcUpgrade linux-power3-smpUpgrade linux-patch-ubuntu-2.6.12Upgrade linux-image-2.6.15-25-powerpc-smpUpgrade fglrx-kernel-sourceUpgrade linux-image-2.6.10-6-386Upgrade linux-image-2.6.10-6-amd64-genericUpgrade linux-image-power4-smpUpgrade linux-restricted-modules-2.6.15-25-686Upgrade linux-image-2.6.10-6-k7-smpUpgrade linux-image-2.6.10-6-powerpcUpgrade linux-power3Upgrade linux-restricted-modules-2.6.15-25-k7Upgrade linux-image-2.6.10-6-powerpc-smpUpgrade linux-image-2.6.15-25-686Upgrade linux-restricted-modules-amd64-xeonUpgrade linux-image-386Upgrade linux-image-2.6.12-10-686Upgrade linux-image-2.6.15-25-amd64-xeonUpgrade linux-image-k7Upgrade linux-restricted-modules-powerpc-smpUpgrade linux-server-bigironUpgrade linux-image-2.6.12-10-k7-smpUpgrade linux-amd64-genericUpgrade linux-image-server-bigironUpgrade linux-image-2.6.15-25-amd64-serverUpgrade linux-image-2.6.15-25-amd64-k8Upgrade fglrx-controlUpgrade linux-tree-2.6.10Upgrade avm-fritz-firmware-2.6.15-25Upgrade xorg-driver-fglrx-devUpgrade linux-image-2.6.10-6-amd64-k8Upgrade linux-image-2.6.15-25-server-bigironUpgrade linux-restricted-modules-2.6.15-25-amd64-xeonUpgrade linux-image-2.6.12-10-powerpc-smpUpgrade linux-image-powerpc64-smpUpgrade linux-restricted-modules-2.6.15-25-amd64-k8Upgrade linux-image-2.6.10-6-power4-smpUpgrade linux-image-power3Upgrade linux-image-2.6.12-10-686-smpUpgrade linux-image-2.6.10-6-power3-smpUpgrade linux-amd64-k8-smpUpgrade linux-686Upgrade linux-powerpc64-smpUpgrade linux-restricted-modules-k7Upgrade linux-image-2.6.15-25-386Upgrade linux-k7-smpUpgrade linux-restricted-modules-386Upgrade avm-fritz-firmwareUpgrade linux-image-2.6.12-10-powerpcUpgrade linux-image-amd64-serverUpgrade linux-amd64-xeonUpgrade linux-image-2.6.12-10-k7Upgrade linux-image-2.6.15-25-amd64-genericUpgrade linux-restricted-modules-2.6.15-25-powerpc-smpUpgrade linux-image-powerpc-smpUpgrade linux-k7Upgrade linux-amd64-serverUpgrade linux-image-686Upgrade linux-image-amd64-genericUpgrade linux-image-amd64-xeonUpgrade linux-patch-ubuntu-2.6.10Upgrade nvidia-glx-devUpgrade linux-power4-smpUpgrade linux-image-power3-smpUpgrade linux-image-2.6.12-10-amd64-xeonUpgrade linux-tree-2.6.12Upgrade linux-image-2.6.10-6-power4Upgrade linux-restricted-modules-amd64-k8Upgrade linux-image-2.6.12-10-amd64-genericUpgrade linux-image-2.6.10-6-amd64-k8-smpUpgrade linux-serverUpgrade linux-powerpc-smpUpgrade linux-image-2.6.12-10-386Upgrade linux-restricted-modules-commonUpgrade linux-image-2.6.10-6-686-smpUpgrade linux-source-2.6.12Upgrade linux-source-2.6.10Upgrade linux-image-serverUpgrade linux-restricted-modules-2.6.15-25-386Upgrade linux-image-2.6.10-6-k7Upgrade linux-restricted-modules-amd64-genericUpgrade linux-restricted-modules-2.6.15-25-powerpcUpgrade linux-amd64-k8Upgrade nvidia-glx-legacyUpgrade avm-fritz-kernel-sourceUpgrade linux-image-2.6.15-25-k7Upgrade linux-image-powerpcUpgrade linux-image-2.6.15-25-serverUpgrade linux-image-2.6.12-10-powerpc64-smpUpgrade linux-image-2.6.12-10-amd64-k8-smpUpgrade linux-image-2.6.12-10-amd64-k8 | Nov 8, 2024 | Apr 20, 2006 |
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