CVE-2017-8903
Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.
- Обновитесь до 4.8.1-1+deb9u1
Опубликовано Обновлено
PatchFirst · Свежие уязвимости
Уязвимости xen · Страница 16
За последние 30 дней в xen опубликовано уязвимостей: 9; в каталоге KEV: 0.
Уязвимостей: 488
CVE-2017-7995
Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the get_user function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL.
- Обновитесь до 4.3.0-1
Опубликовано ОбновленоCVE-2017-7228
An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.
- Обновитесь до 4.8.1-1
Опубликовано ОбновленоCVE-2016-9818
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving an asynchronous abort while at HYP.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9817
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving a (1) data or (2) prefetch abort with the ESR_EL2.EA bit set.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9816
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving an asynchronous abort while at EL2.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9815
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host panic) by sending an asynchronous abort.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9384
Xen 4.7 allows local guest OS users to obtain sensitive host information by loading a 32-bit ELF symbol table.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9378
Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service (guest crash) by leveraging an incorrect choice for software interrupt delivery.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9377
Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service (guest crash) by leveraging IDT entry miscalculation.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9637
The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.
- Обновитесь до 4.4.0-1
Опубликовано ОбновленоCVE-2016-9932
CMPXCHG8B emulation in Xen 3.3.x through 4.7.x on x86 systems allows local HVM guest OS users to obtain sensitive information from host stack memory via a "supposedly-ignored" operand size prefix.
- Обновитесь до 4.8.0~rc3-1
Опубликовано ОбновленоCVE-2016-10025
VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-10024
Xen through 4.8.x allows local x86 PV guest OS kernel administrators to cause a denial of service (host hang or crash) by modifying the instruction stream asynchronously while performing certain kernel operations.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-10013
Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emulation.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9386
The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9385
The x86 segment base write emulation functionality in Xen 4.4.x through 4.7.x allows local x86 PV guest OS administrators to cause a denial of service (host crash) by leveraging lack of canonical address checks.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9383
Xen, when running on a 64-bit hypervisor, allows local x86 guest OS users to modify arbitrary memory and consequently obtain sensitive information, cause a denial of service (host crash), or execute arbitrary code on the host by leveraging broken emulation of bit test instructions.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9382
Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.
- Обновитесь до 4.8.0-1
Опубликовано ОбновленоCVE-2016-9381
Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.
- Обновитесь до 4.4.0-1
Опубликовано Обновлено
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