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Search Parameters:
  • Results Type: Overview
  • Keyword (text search): cpe:2.3:a:citrix:xenserver:7.1:cu1:*:*:ltsr:*:*:*
  • CPE Name Search: true
There are 14 matching records.
Displaying matches 1 through 14.
Vuln ID Summary CVSS Severity
CVE-2018-19965

An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.

Published: December 07, 2018; 11:29:00 PM -0500
V3.0: 5.6 MEDIUM
V2.0: 4.7 MEDIUM
CVE-2018-19962

An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because small IOMMU mappings are unsafely combined into larger ones.

Published: December 07, 2018; 11:29:00 PM -0500
V3.0: 7.8 HIGH
V2.0: 6.9 MEDIUM
CVE-2018-19961

An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.

Published: December 07, 2018; 11:29:00 PM -0500
V3.0: 7.8 HIGH
V2.0: 6.9 MEDIUM
CVE-2018-14007

Citrix XenServer 7.1 and newer allows Directory Traversal.

Published: August 15, 2018; 2:29:00 PM -0400
V3.0: 9.8 CRITICAL
V2.0: 10.0 HIGH
CVE-2016-9603

A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.

Published: July 27, 2018; 5:29:00 PM -0400
V3.0: 9.9 CRITICAL
V2.0: 9.0 HIGH
CVE-2017-2620

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.

Published: July 27, 2018; 3:29:00 PM -0400
V3.0: 9.9 CRITICAL
V2.0: 9.0 HIGH
CVE-2017-2615

Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host.

Published: July 02, 2018; 9:29:00 PM -0400
V3.0: 9.1 CRITICAL
V2.0: 9.0 HIGH
CVE-2018-11053

Dell EMC iDRAC Service Module for all supported Linux and XenServer versions v3.0.1, v3.0.2, v3.1.0, v3.2.0, when started, changes the default file permission of the hosts file of the host operating system (/etc/hosts) to world writable. A malicious low privileged operating system user or process could modify the host file and potentially redirect traffic from the intended destination to sites hosting malicious or unwanted content.

Published: June 26, 2018; 6:29:00 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.0 MEDIUM
CVE-2018-3665

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.

Published: June 21, 2018; 4:29:00 PM -0400
V3.1: 5.6 MEDIUM
V2.0: 4.7 MEDIUM
CVE-2018-8897

A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL < 3, the debug exception is delivered after the transfer to CPL < 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs.

Published: May 08, 2018; 2:29:00 PM -0400
V3.0: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2017-12137

arch/x86/mm.c in Xen allows local PV guest OS users to gain host OS privileges via vectors related to map_grant_ref.

Published: August 24, 2017; 10:29:00 AM -0400
V3.0: 8.8 HIGH
V2.0: 7.2 HIGH
CVE-2017-12136

Race condition in the grant table code in Xen 4.6.x through 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.

Published: August 24, 2017; 10:29:00 AM -0400
V3.0: 7.8 HIGH
V2.0: 6.9 MEDIUM
CVE-2017-12135

Xen allows local OS guest users to cause a denial of service (crash) or possibly obtain sensitive information or gain privileges via vectors involving transitive grants.

Published: August 24, 2017; 10:29:00 AM -0400
V3.0: 8.8 HIGH
V2.0: 4.6 MEDIUM
CVE-2017-12134

The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.

Published: August 24, 2017; 10:29:00 AM -0400
V3.0: 8.8 HIGH
V2.0: 7.2 HIGH