Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c.

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 remote host is affected by the vulnerability described in GLSA-201604-03 (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.

nine security updates CVE-2015-7969 CVE-2015-7970 CVE-2015-7813 CVE-2015-7814 CVE-2015-7812 CVE-2015-7971 CVE-2015-7835 CVE-2015-7972

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.

Multiple security issues have been found in the Xen virtualisation solution, which may result in denial of service or information disclosure.

ID	Name	Product	Family	Severity
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
90380	GLSA-201604-03 : Xen: Multiple vulnerabilities (Venom)	Nessus	Gentoo Local Security Checks	critical
89359	Fedora 23 : xen-4.5.1-14.fc23 (2015-a931b02be2)	Nessus	Fedora Local Security Checks	high
89278	Fedora 22 : xen-4.5.1-14.fc22 (2015-6f6b79efe2)	Nessus	Fedora Local Security Checks	high
89177	Fedora 21 : xen-4.4.3-7.fc21 (2015-242be2c240)	Nessus	Fedora Local Security Checks	high
87288	Debian DSA-3414-1 : xen - security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2015-7813

critical

Tenable Plugins

critical

critical

critical

high

high

high

medium