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xen xen 4.6.4 vulnerabilities and exploits

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8.8
CVSSv3

CVE-2017-8905

Xen up to and including 4.6.x on 64-bit platforms mishandles a failsafe callback, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-215.
Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.2Xen Xen 4.6.3Xen Xen 4.6.4Xen Xen 4.6.5
6.5
CVSSv3

CVE-2017-10923

Xen up to and including 4.8.x does not validate a vCPU array index upon the sending of an SGI, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-225.
Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.2Xen Xen 4.6.4Xen Xen 4.6.5Xen Xen 4.7.1Xen Xen 4.8.0Xen Xen 4.8.1
5.5
CVSSv3

CVE-2016-10025

VMFUNC emulation in Xen 4.6.x up to and including 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.
Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.3Xen Xen 4.6.4Xen Xen 4.7.0Xen Xen 4.7.1Xen Xen 4.8.0Citrix Xenserver 6.0.2Citrix Xenserver 6.2.0Citrix Xenserver 6.5Citrix Xenserver 7.0
7.5
CVSSv3

CVE-2017-10916

The vCPU context-switch implementation in Xen up to and including 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.
Xen Xen 4.5.0Xen Xen 4.5.1Xen Xen 4.5.2Xen Xen 4.5.3Xen Xen 4.5.5Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.2Xen Xen 4.6.4Xen Xen 4.6.5Xen Xen 4.7.1Xen Xen 4.8.0
6.5
CVSSv3

CVE-2017-14318

An issue exists in Xen 4.5.x up to and including 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table i...
Xen Xen 4.5.0Xen Xen 4.5.1Xen Xen 4.5.2Xen Xen 4.5.3Xen Xen 4.5.5Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.3Xen Xen 4.6.4Xen Xen 4.6.5Xen Xen 4.6.6Xen Xen 4.7.0
6.5
CVSSv3

CVE-2017-15591

An issue exists in Xen 4.5.x up to and including 4.9.x allowing attackers (who control a stub domain kernel or tool stack) to cause a denial of service (host OS crash) because of a missing comparison (of range start to range end) within the DMOP map/unmap implementation.
Xen Xen 4.5.0Xen Xen 4.5.1Xen Xen 4.5.2Xen Xen 4.5.3Xen Xen 4.5.5Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.3Xen Xen 4.6.4Xen Xen 4.6.5Xen Xen 4.6.6Xen Xen 4.7.0
6.5
CVSSv3

CVE-2017-12855

Xen maintains the _GTF_{read,writ}ing bits as appropriate, to inform the guest that a grant is in use. A guest is expected not to modify the grant details while it is in use, whereas the guest is free to modify/reuse the grant entry when it is not in use. Under some circumstances...
Xen Xen 4.5.0Xen Xen 4.5.1Xen Xen 4.5.2Xen Xen 4.5.3Xen Xen 4.5.5Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.3Xen Xen 4.6.4Xen Xen 4.6.5Xen Xen 4.6.6Xen Xen 4.7.0
7.8
CVSSv3

CVE-2017-12136

Race condition in the grant table code in Xen 4.6.x up to and including 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.
Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.3Xen Xen 4.6.4Xen Xen 4.6.5Xen Xen 4.6.6Xen Xen 4.7.0Xen Xen 4.7.1Xen Xen 4.7.2Xen Xen 4.7.3Xen Xen 4.8.0Xen Xen 4.8.1
6
CVSSv3

CVE-2017-15596

An issue exists in Xen 4.4.x up to and including 4.9.x allowing ARM guest OS users to cause a denial of service (prevent physical CPU usage) because of lock mishandling upon detection of an add-to-physmap error.
Xen Xen 4.4.0Xen Xen 4.4.1Xen Xen 4.4.2Xen Xen 4.4.3Xen Xen 4.4.4Xen Xen 4.5.0Xen Xen 4.5.1Xen Xen 4.5.2Xen Xen 4.5.3Xen Xen 4.5.4Xen Xen 4.5.5Xen Xen 4.6.0
5.5
CVSSv3

CVE-2017-14431

Memory leak in Xen 3.3 up to and including 4.8.x allows guest OS users to cause a denial of service (ARM or x86 AMD host OS memory consumption) by continually rebooting, because certain cleanup is skipped if no pass-through device was ever assigned, aka XSA-207.
Xen Xen 3.3.0Xen Xen 3.3.1Xen Xen 3.3.2Xen Xen 3.4.0Xen Xen 3.4.1Xen Xen 3.4.2Xen Xen 3.4.3Xen Xen 3.4.4Xen Xen 4.0.0Xen Xen 4.0.1Xen Xen 4.0.2Xen Xen 4.0.3
Preferred Score:
CVSSv3
CVSSv2
CVSSv3
CVSSv4
EPSS
VMScore
Recommendations:
CVE-2024-10401validationCVE-2025-0483CVE-2024-10789deserializationCVE-2025-21333wirelessCVE-2024-13387CVE-2025-21334
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