CVE-2015-5166

high
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Description

Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice.

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html

http://www.securityfocus.com/bid/76152

http://www.securitytracker.com/id/1033175

http://xenbits.xen.org/xsa/advisory-139.html

Details

Source: MITRE

Published: 2015-08-12

Updated: 2018-10-30

Type: CWE-264

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
86909openSUSE Security Update : xen (openSUSE-2015-750)NessusSuSE Local Security Checks
medium
86863openSUSE Security Update : xen (openSUSE-2015-729)NessusSuSE Local Security Checks
medium
86163Fedora 21 : xen-4.4.3-3.fc21 (2015-15946)NessusFedora Local Security Checks
high
86162Fedora 22 : xen-4.5.1-8.fc22 (2015-15944)NessusFedora Local Security Checks
high
85792SUSE SLED11 Security Update : xen (SUSE-SU-2015:1479-2)NessusSuSE Local Security Checks
high
85791SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:1479-1)NessusSuSE Local Security Checks
high
85728Fedora 23 : xen-4.5.1-6.fc23 (2015-14361)NessusFedora Local Security Checks
high
85683Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : qemu, qemu-kvm vulnerabilities (USN-2724-1)NessusUbuntu Local Security Checks
medium
85592Fedora 23 : qemu-2.4.0-1.fc23 (2015-13358)NessusFedora Local Security Checks
medium
85532SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:1404-1)NessusSuSE Local Security Checks
high
85505SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2015:1384-1)NessusSuSE Local Security Checks
high
85485FreeBSD : qemu, xen-tools -- use-after-free in QEMU/Xen block unplug protocol (ee99899d-4347-11e5-93ad-002590263bf5)NessusFreeBSD Local Security Checks
high
85480Fedora 22 : qemu-2.3.1-1.fc22 (2015-13402)NessusFedora Local Security Checks
medium
85236OracleVM 3.3 : xen (OVMSA-2015-0111)NessusOracleVM Local Security Checks
high