CVE-2015-8554

HIGH
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional (aka qemu-dm) device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a "write path."

References

http://support.citrix.com/article/CTX203879

http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

http://www.securityfocus.com/bid/79579

http://www.securitytracker.com/id/1034481

http://xenbits.xen.org/xsa/advisory-164.html

https://security.gentoo.org/glsa/201604-03

Details

Source: MITRE

Published: 2016-04-14

Updated: 2017-07-01

Type: CWE-119

Risk Information

CVSS v2

Base Score: 6.6

Vector: AV:L/AC:M/Au:S/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 2.7

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Impact Score: 6

Exploitability Score: 0.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to 4.6.1 (inclusive)

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
93177SUSE SLES11 Security Update : xen (SUSE-SU-2016:1745-1)NessusSuSE Local Security Checks
critical
91756OracleVM 3.2 : xen (OVMSA-2016-0081)NessusOracleVM Local Security Checks
high
91249SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:1318-1)NessusSuSE Local Security Checks
critical
91198Debian DLA-479-1 : xen security updateNessusDebian Local Security Checks
high
90759SUSE SLES11 Security Update : xen (SUSE-SU-2016:1154-1)NessusSuSE Local Security Checks
critical
90396SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2016:0955-1)NessusSuSE Local Security Checks
critical
90380GLSA-201604-03 : Xen: Multiple vulnerabilities (Venom)NessusGentoo Local Security Checks
critical
90186SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:0873-1)NessusSuSE Local Security Checks
critical
89429Fedora 23 : xen-4.5.2-6.fc23 (2015-d8253e2b1d)NessusFedora Local Security Checks
high
89398Fedora 22 : xen-4.5.2-6.fc22 (2015-c44bd3e0fa)NessusFedora Local Security Checks
high
88170OracleVM 3.3 : xen (OVMSA-2016-0007)NessusOracleVM Local Security Checks
high
88126openSUSE Security Update : xen (openSUSE-2016-36)NessusSuSE Local Security Checks
high
88125openSUSE Security Update : xen (openSUSE-2016-35)NessusSuSE Local Security Checks
high
88124openSUSE Security Update : xen (openSUSE-2016-34)NessusSuSE Local Security Checks
high