The Intel VT-d Interrupt Remapping engine in Xen 3.3.x through 4.3.x allows local guests to cause a denial of service (kernel panic) via a malformed Message Signaled Interrupt (MSI) from a PCI device that is bus mastering capable that triggers a System Error Reporting (SERR) Non-Maskable Interrupt (NMI).

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The Intel VT-d Interrupt Remapping engine in Xen 3.3.x through 4.3.x allows local guests to cause a denial     of service (kernel panic) via a malformed Message Signaled Interrupt (MSI) from a PCI device that is bus     mastering capable that triggers a System Error Reporting (SERR) Non-Maskable Interrupt (NMI).
    (CVE-2013-3495)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2020-0039 for details.

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2018-0248 for details.

The Virtualization service XEN was updated to fix various bugs and security issues.

The following security issues have been fixed :

XSA-125: Long latency MMIO mapping operations were not preemptible.

CVE-2015-2151: XSA-123: Instructions with register operands ignored eventual segment overrides encoded for them. Due to an insufficiently conditional assignment such a bogus segment override could have, however, corrupted a pointer used subsequently to store the result of the instruction.

CVE-2015-2045: XSA-122: The code handling certain sub-operations of the HYPERVISOR_xen_version hypercall failed to fully initialize all fields of structures subsequently copied back to guest memory. Due to this hypervisor stack contents were copied into the destination of the operation, thus becoming visible to the guest.

CVE-2015-2044: XSA-121: Emulation routines in the hypervisor dealing with certain system devices checked whether the access size by the guest is a supported one. When the access size is unsupported these routines failed to set the data to be returned to the guest for read accesses, so that hypervisor stack contents were copied into the destination of the operation, thus becoming visible to the guest.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

xen was updated to fix 10 security issues :

  - Guest effectable page reference leak in     MMU_MACHPHYS_UPDATE handling (CVE-2014-9030).

  - Insufficient bounding of 'REP MOVS' to MMIO emulated     inside the hypervisor (CVE-2014-8867).

  - Missing privilege level checks in x86 emulation of far     branches (CVE-2014-8595).

  - Missing privilege level checks in x86 HLT, LGDT, LIDT,     and LMSW emulation (CVE-2014-7155).

  - Hypervisor heap contents leaked to guests     (CVE-2014-4021).

  - Missing privilege level checks in x86 emulation of far     branches (CVE-2014-8595).

  - Insufficient restrictions on certain MMU update     hypercalls (CVE-2014-8594).

  - Intel VT-d Interrupt Remapping engines can be evaded by     native NMI interrupts (CVE-2013-3495).

  - Missing privilege level checks in x86 emulation of     software interrupts (CVE-2014-7156).

  - Race condition in HVMOP_track_dirty_vram     (CVE-2014-7154).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

xen was updated to fix 14 security issues :

  - Guest effectable page reference leak in     MMU_MACHPHYS_UPDATE handling (CVE-2014-9030).

  - Insufficient bounding of 'REP MOVS' to MMIO emulated     inside the hypervisor (CVE-2014-8867).

  - Missing privilege level checks in x86 HLT, LGDT, LIDT,     and LMSW emulation (CVE-2014-7155).

  - Hypervisor heap contents leaked to guests     (CVE-2014-4021).

  - Missing privilege level checks in x86 emulation of far     branches (CVE-2014-8595).

  - Insufficient restrictions on certain MMU update     hypercalls (CVE-2014-8594).

  - Intel VT-d Interrupt Remapping engines can be evaded by     native NMI interrupts (CVE-2013-3495).

  - Missing privilege level checks in x86 emulation of     software interrupts (CVE-2014-7156).

  - Race condition in HVMOP_track_dirty_vram     (CVE-2014-7154).

  - Improper MSR range used for x2APIC emulation     (CVE-2014-7188).

  - HVMOP_set_mem_type allows invalid P2M entries to be     created (CVE-2014-3124).

  - HVMOP_set_mem_access is not preemptible (CVE-2014-2599).

  - Excessive checking in compatibility mode hypercall     argument translation (CVE-2014-8866).

  - Guest user mode triggerable VM exits not handled by     hypervisor (bnc#903850).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201504-04 (Xen: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Xen.  Please review the       CVE identifiers referenced below for details.
  Impact :

    A local attacker could possibly cause a Denial of Service condition or       obtain sensitive information.
  Workaround :

    There is no known workaround at this time.

The XEN virtualization was updated to fix bugs and security issues :

Security issues fixed: CVE-2015-0361: XSA-116: xen: xen crash due to use after free on hvm guest teardown 

CVE-2014-9065, CVE-2014-9066: XSA-114: xen: p2m lock starvation

CVE-2014-9030: XSA-113: Guest effectable page reference leak in MMU_MACHPHYS_UPDATE handling

CVE-2014-8867: XSA-112: xen: Insufficient bounding of 'REP MOVS' to MMIO emulated inside the hypervisor

CVE-2014-8866: XSA-111: xen: Excessive checking in compatibility mode hypercall argument translation

CVE-2014-8595: XSA-110: xen: Missing privilege level checks in x86 emulation of far branches

CVE-2014-8594: XSA-109: xen: Insufficient restrictions on certain MMU update hypercalls

CVE-2013-3495: XSA-59: xen: Intel VT-d Interrupt Remapping engines can be evaded by native NMI interrupts

CVE-2014-5146, CVE-2014-5149: xen: XSA-97 Long latency virtual-mmu operations are not preemptible

Bugs fixed :

  - Restore missing fixes from block-dmmd script

  - bnc#904255 - XEN boot hangs in early boot on UEFI system

  - Fix missing banner by restoring figlet program

  - bnc#903357 - Corrupted save/restore test leaves orphaned     data in xenstore

  - bnc#903359 - Temporary migration name is not cleaned up     after migration

  - bnc#903850 - Xen: guest user mode triggerable VM exits     not handled by hypervisor

  - bnc#866902 - Xen save/restore of HVM guests cuts off     disk and networking 

  - bnc#901317 - increase limit domUloader to 32MB

  - bnc#898772 - SLES 12 RC3 - XEN Host crashes when     assigning non-VF device (SR-IOV) to guest

  - bnc#882089 - Windows 2012 R2 fails to boot up with     greater than 60 vcpus

  - bsc#900292 - xl: change default dump directory

  - Update xen2libvirt.py to better detect and handle file     formats

  - bnc#882089 - Windows 2012 R2 fails to boot up with     greater than 60 vcpus

  - bnc#897906 - libxc: check return values on mmap() and     madvise() on xc_alloc_hypercall_buffer()

  - bnc#896023 - Adjust xentop column layout

The virtualization software XEN was updated to version 4.3.3 and also to fix bugs and security issues.

Security issues fixed: CVE-2015-0361: XSA-116: xen: xen crash due to use after free on hvm guest teardown 

CVE-2014-9065, CVE-2014-9066: XSA-114: xen: p2m lock starvation

CVE-2014-9030: XSA-113: Guest effectable page reference leak in MMU_MACHPHYS_UPDATE handling

CVE-2014-8867: XSA-112: xen: Insufficient bounding of 'REP MOVS' to MMIO emulated inside the hypervisor

CVE-2014-8866: XSA-111: xen: Excessive checking in compatibility mode hypercall argument translation

CVE-2014-8595: XSA-110: xen: Missing privilege level checks in x86 emulation of far branches

CVE-2014-8594: XSA-109: xen: Insufficient restrictions on certain MMU update hypercalls

CVE-2013-3495: XSA-59: xen: Intel VT-d Interrupt Remapping engines can be evaded by native NMI interrupts

CVE-2014-5146, CVE-2014-5149: xen: XSA-97 Long latency virtual-mmu operations are not preemptible

Bugs fixed :

  - bnc#903357 - Corrupted save/restore test leaves orphaned     data in xenstore

  - bnc#903359 - Temporary migration name is not cleaned up     after migration

  - bnc#903850 - VUL-0: Xen: guest user mode triggerable VM     exits not handled by hypervisor

  - bnc#866902 - L3: Xen save/restore of HVM guests cuts off     disk and networking

  - bnc#901317 - L3: increase limit domUloader to 32MB     domUloader.py

  - bnc#882089 - Windows 2012 R2 fails to boot up with     greater than 60 vcpus

  - bsc#900292 - xl: change default dump directory

  - Update to Xen 4.3.3

ID	Name	Product	Family	Severity
217890	Linux Distros Unpatched Vulnerability : CVE-2013-3495	Nessus	Misc.	medium
140019	OracleVM 3.4 : xen (OVMSA-2020-0039) (Bunker Buster) (Foreshadow) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (Meltdown) (POODLE) (Spectre)	Nessus	OracleVM Local Security Checks	critical
111992	OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre)	Nessus	OracleVM Local Security Checks	critical
83717	SUSE SLES10 Security Update : Xen (SUSE-SU-2015:0744-1)	Nessus	SuSE Local Security Checks	high
83659	SUSE SLES11 Security Update : xen (SUSE-SU-2014:1732-1)	Nessus	SuSE Local Security Checks	high
83654	SUSE SLES11 Security Update : xen (SUSE-SU-2014:1710-1)	Nessus	SuSE Local Security Checks	high
82734	GLSA-201504-04 : Xen: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
81305	openSUSE Security Update : xen (openSUSE-2015-129)	Nessus	SuSE Local Security Checks	high
81239	openSUSE Security Update : xen (openSUSE-2015-113)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2013-3495

medium

Tenable Plugins

medium

critical

critical

high

high

high

high

high

high