The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xen | Aug 30, 2017 | Apr 19, 2016 |
| Amazon_linux | — | Upgrade kernel | Apr 20, 2016 | Apr 12, 2016 |
| Debian | — | Upgrade linux | Jun 28, 2016 | Apr 12, 2016 |
| Oracle_linux | — | Upgrade kernel-uek | Apr 12, 2016 | Mar 16, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 16, 2016 |
| Ubuntu | — | Upgrade linux-image-3.13.0-86-powerpc64-embUpgrade linux-image-3.13.0-86-powerpc-e500Upgrade linux-image-3.13.0-86-powerpc64-smpUpgrade linux-image-4.2.0-36-genericUpgrade linux-image-3.16.0-71-powerpc-e500mcUpgrade linux-image-3.19.0-59-genericUpgrade linux-image-3.16.0-71-lowlatencyUpgrade linux-image-3.2.0-104-highbankUpgrade linux-image-3.19.0-59-powerpc-smpUpgrade linux-image-3.2.0-104-genericUpgrade linux-image-4.4.0-22-powerpc-smpUpgrade linux-image-3.2.0-1482-omap4Upgrade linux-image-3.13.0-86-genericUpgrade linux-image-3.2.0-104-virtualUpgrade linux-image-4.4.0-22-lowlatencyUpgrade linux-image-4.4.0-1010-raspi2Upgrade linux-image-3.13.0-86-lowlatencyUpgrade linux-image-4.2.0-36-powerpc64-embUpgrade linux-image-4.4.0-22-genericUpgrade linux-image-3.13.0-86-powerpc-smpUpgrade linux-image-4.2.0-1029-raspi2Upgrade linux-image-3.2.0-104-omapUpgrade linux-image-3.16.0-71-powerpc64-smpUpgrade linux-image-4.2.0-36-generic-lpaeUpgrade linux-image-3.19.0-59-powerpc-e500mcUpgrade linux-image-3.19.0-59-powerpc64-smpUpgrade linux-image-4.2.0-36-lowlatencyUpgrade linux-image-3.2.0-104-powerpc-smpUpgrade linux-image-4.4.0-22-powerpc64-embUpgrade linux-image-4.4.0-22-powerpc64-smpUpgrade linux-image-3.13.0-86-generic-lpaeUpgrade linux-image-3.2.0-104-powerpc64-smpUpgrade linux-image-4.2.0-36-powerpc64-smpUpgrade linux-image-3.16.0-71-powerpc64-embUpgrade linux-image-3.16.0-71-genericUpgrade linux-image-4.4.0-1013-snapdragonUpgrade linux-image-3.19.0-59-lowlatencyUpgrade linux-image-3.2.0-104-generic-paeUpgrade linux-image-3.19.0-59-generic-lpaeUpgrade linux-image-3.19.0-59-powerpc64-embUpgrade linux-image-4.4.0-22-powerpc-e500mcUpgrade linux-image-3.13.0-86-powerpc-e500mcUpgrade linux-image-3.16.0-71-generic-lpaeUpgrade linux-image-4.2.0-36-powerpc-e500mcUpgrade linux-image-4.2.0-36-powerpc-smpUpgrade linux-image-4.4.0-22-generic-lpaeUpgrade linux-image-3.16.0-71-powerpc-smp | May 6, 2016 | Apr 12, 2016 |
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