National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

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Search Parameters:
  • Contains Software Flaws (CVE)
  • CPE Product Version: cpe:/o:xen:xen:4.0.0
There are 165 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2019-17349

An issue was discovered in Xen through 4.12.x allowing Arm domU attackers to cause a denial of service (infinite loop) involving a LoadExcl or StoreExcl operation.

Published: October 07, 2019; 09:15:11 PM -04:00
V3.1: 5.5 MEDIUM
    V2: 4.9 MEDIUM
CVE-2019-17348

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service because of an incompatibility between Process Context Identifiers (PCID) and shadow-pagetable switching.

Published: October 07, 2019; 09:15:10 PM -04:00
V3.1: 6.5 MEDIUM
    V2: 4.9 MEDIUM
CVE-2019-17346

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.

Published: October 07, 2019; 09:15:10 PM -04:00
V3.1: 8.8 HIGH
    V2: 7.2 HIGH
CVE-2019-17344

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.

Published: October 07, 2019; 09:15:10 PM -04:00
V3.1: 6.5 MEDIUM
    V2: 4.9 MEDIUM
CVE-2019-17343

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging incorrect use of the HVM physmap concept for PV domains.

Published: October 07, 2019; 09:15:10 PM -04:00
V3.1: 6.8 MEDIUM
    V2: 4.6 MEDIUM
CVE-2019-17342

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging a race condition that arose when XENMEM_exchange was introduced.

Published: October 07, 2019; 09:15:10 PM -04:00
V3.1: 7.0 HIGH
    V2: 4.4 MEDIUM
CVE-2019-17341

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging a page-writability race condition during addition of a passed-through PCI device.

Published: October 07, 2019; 09:15:10 PM -04:00
V3.1: 7.8 HIGH
    V2: 6.9 MEDIUM
CVE-2019-17340

An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain privileges because grant-table transfer requests are mishandled.

Published: October 07, 2019; 09:15:10 PM -04:00
V3.1: 8.8 HIGH
    V2: 6.1 MEDIUM
CVE-2019-17351

An issue was discovered in drivers/xen/balloon.c in the Linux kernel before 5.2.3, as used in Xen through 4.12.x, allowing guest OS users to cause a denial of service because of unrestricted resource consumption during the mapping of guest memory, aka CID-6ef36ab967c7.

Published: October 07, 2019; 08:15:10 PM -04:00
V3.1: 6.5 MEDIUM
    V2: 4.9 MEDIUM
CVE-2019-17350

An issue was discovered in Xen through 4.12.x allowing Arm domU attackers to cause a denial of service (infinite loop) involving a compare-and-exchange operation.

Published: October 07, 2019; 08:15:10 PM -04:00
V3.1: 5.5 MEDIUM
    V2: 4.9 MEDIUM
CVE-2018-19967

An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.

Published: December 07, 2018; 11:29:00 PM -05:00
V3.0: 6.5 MEDIUM
    V2: 4.9 MEDIUM
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 -05:00
V3.0: 5.6 MEDIUM
    V2: 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 -05:00
V3.0: 7.8 HIGH
    V2: 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 -05:00
V3.0: 7.8 HIGH
    V2: 6.9 MEDIUM
CVE-2018-15471

An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.

Published: August 17, 2018; 02:29:01 PM -04:00
V3.0: 7.8 HIGH
    V2: 6.8 MEDIUM
CVE-2018-15470

An issue was discovered in Xen through 4.11.x. The logic in oxenstored for handling writes depended on the order of evaluation of expressions making up a tuple. As indicated in section 7.7.3 "Operations on data structures" of the OCaml manual, the order of evaluation of subexpressions is not specified. In practice, different implementations behave differently. Thus, oxenstored may not enforce the configured quota-maxentity. This allows a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS.

Published: August 17, 2018; 02:29:00 PM -04:00
V3.0: 6.5 MEDIUM
    V2: 4.9 MEDIUM
CVE-2018-15469

An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).

Published: August 17, 2018; 02:29:00 PM -04:00
V3.0: 6.5 MEDIUM
    V2: 4.9 MEDIUM
CVE-2018-15468

An issue was discovered in Xen through 4.11.x. The DEBUGCTL MSR contains several debugging features, some of which virtualise cleanly, but some do not. In particular, Branch Trace Store is not virtualised by the processor, and software has to be careful to configure it suitably not to lock up the core. As a result, it must only be available to fully trusted guests. Unfortunately, in the case that vPMU is disabled, all value checking was skipped, allowing the guest to choose any MSR_DEBUGCTL setting it likes. A malicious or buggy guest administrator (on Intel x86 HVM or PVH) can lock up the entire host, causing a Denial of Service.

Published: August 17, 2018; 02:29:00 PM -04:00
V3.0: 6.0 MEDIUM
    V2: 4.9 MEDIUM
CVE-2018-14678

An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges.

Published: July 28, 2018; 02:29:00 PM -04:00
V3.0: 7.8 HIGH
    V2: 7.2 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; 03:29:00 PM -04:00
V3.0: 9.9 CRITICAL
    V2: 9.0 HIGH