Vulnerabilities (CVE)

Filtered by vendor Citrix Subscribe
Filtered by product Xenserver
Total 51 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2016-9380 2 Citrix, Xen 2 Xenserver, Xen 2017-07-01 4.6 MEDIUM 7.5 HIGH
The pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.
CVE-2016-9379 2 Citrix, Xen 2 Xenserver, Xen 2017-07-01 4.6 MEDIUM 7.9 HIGH
The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.
CVE-2016-6258 2 Citrix, Xen 2 Xenserver, Xen 2017-07-01 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 2017-07-01 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-2012-3495 2 Citrix, Xen 2 Xenserver, Xen 2017-07-01 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-2016-10025 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 2016-08-04 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 2013-02-01 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 2010-07-06 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 2010-03-18 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.