Vulnerabilities (CVE)

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Filtered by vendor Citrix Subscribe
Filtered by product Xenserver
Total 50 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2016-9386 2 Citrix, Xen 2 Xenserver, Xen 2017-06-30 4.6 MEDIUM 7.8 HIGH
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.
CVE-2012-3495 2 Citrix, Xen 2 Xenserver, Xen 2017-06-30 6.1 MEDIUM N/A
The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.
CVE-2016-6258 2 Citrix, Xen 2 Xenserver, Xen 2017-06-30 7.2 HIGH 8.8 HIGH
The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
CVE-2015-8555 2 Citrix, Xen 2 Xenserver, Xen 2017-06-30 5.0 MEDIUM 8.6 HIGH
Xen 4.6.x, 4.5.x, 4.4.x, 4.3.x, and earlier do not initialize x86 FPU stack and XMM registers when XSAVE/XRSTOR are not used to manage guest extended register state, which allows local guest domains to obtain sensitive information from other domains via unspecified vectors.
CVE-2016-10025 2 Citrix, Xen 2 Xenserver, Xen 2017-01-27 2.1 LOW 5.5 MEDIUM
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.
CVE-2016-6259 2 Citrix, Xen 2 Xenserver, Xen 2016-08-03 4.9 MEDIUM 6.2 MEDIUM
Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.
CVE-2016-5302 1 Citrix 1 Xenserver 2016-06-20 7.5 HIGH 9.8 CRITICAL
Citrix XenServer 7.0 before Hotfix XS70E003, when a deployment has been upgraded from an earlier release, might allow remote attackers on the management network to "compromise" a host by leveraging credentials for an Active Directory account.
CVE-2012-3516 2 Citrix, Xen 2 Xenserver, Xen 2013-01-31 6.9 MEDIUM N/A
The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.
CVE-2010-2619 1 Citrix 1 Xenserver 2010-07-05 1.9 LOW N/A
Citrix XenServer 5.0 Update 2 and earlier, and 5.5 Update 1 and earlier, when using a pvops kernel, allows guest users to cause a denial of service in the host via unspecified vectors that trigger "incorrectly set flags."
CVE-2010-0633 1 Citrix 1 Xenserver 2010-03-17 4.6 MEDIUM N/A
Unspecified vulnerability in Citrix XenServer 5.0 Update 3 and earlier, and 5.5, allows local users to bypass authentication and execute unspecified Xen API (XAPI) calls via unknown vectors.