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CVE-2015-8554

Date: April 14, 2016

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."

Language: C

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2015-8554
http://xenbits.xen.org/xsa/advisory-164.html
https://security.gentoo.org/glsa/201604-03
http://support.citrix.com/article/CTX203879
http://www.securityfocus.com/bid/79579
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
https://access.redhat.com/security/cve/CVE-2015-8554
https://security-tracker.debian.org/tracker/CVE-2015-8554
http://www.securitytracker.com/id/1034481
https://www.mend.io/vulnerability-database/CVE-2015-8554

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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