Guest effectable page reference leak in MMU_MACHPHYS_UPDATE handling Insufficient restrictions on certain MMU update hypercalls, Missing privilege level checks in x86 emulation of far branches, Add fix for CVE-2014-0150 to qemu-dm, though it probably isn't exploitable from xen

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2018-0248 for details.

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

ID	名前	製品	ファミリー	公開日	更新日	深刻度
79651	Fedora 19 : xen-4.2.5-5.fc19 (2014-15503)	Nessus	Fedora Local Security Checks	2014/12/2	2021/1/11	high
83654	SUSE SLES11 Security Update : xen (SUSE-SU-2014:1710-1)	Nessus	SuSE Local Security Checks	2015/5/20	2021/1/19	high
111992	OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre)	Nessus	OracleVM Local Security Checks	2018/8/20	2026/1/9	critical
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	2020/8/28	2026/1/9	critical

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