The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction.
CVSS Details
- CVSS 3.1 Base Score: 3.8
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade xen | Jul 30, 2024 | Oct 1, 2013 |
| Gentoo Linux | — | Upgrade app-emulations/xen.Upgrade app-emulations/xen-tools.Upgrade app-emulations/xen-pvgrub. | Oct 30, 2017 | Oct 1, 2013 |
| Suse | — | Upgrade xen-libsUpgrade xen-doc-pdfUpgrade xen-doc-htmlUpgrade xen-develUpgrade xen-libs-32bitUpgrade xen-kmp-paeUpgrade xenUpgrade xen-tools-domUUpgrade xen-kmp-defaultUpgrade xen-toolsUpgrade xen-kmp-traceUpgrade xen-kmp-desktopUpgrade sle-sdk-release | Dec 12, 2013 | Oct 1, 2013 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Oct 1, 2013 |
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