HOME VULNERABILITIESCVE-2015-8552

MEDIUM

CVE-2015-8552

CWE-20Published: April 13, 2016· Updated: Jun 17, 2026

4.4

CVSS v3.1

Official Description

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks."

Technical Analysis

CVE-2015-8552 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.4.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.High

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Affected Vendors & Products

Canonical1 product(s)

ubuntu linux

Debian1 product(s)

debian linux

novell2 product(s)

suse linux enterprise debuginfosuse linux enterprise real time extension

xen1 product(s)

xen

Source: NVD CPE · 43 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html

ADVISORYhttp://www.securityfocus.com/bid/79546

ADVISORYhttp://www.securitytracker.com/id/1034480

ADVISORYhttp://xenbits.xen.org/xsa/advisory-157.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html

ADVISORYhttp://www.securityfocus.com/bid/79546

ADVISORYhttp://www.securitytracker.com/id/1034480

ADVISORYhttp://xenbits.xen.org/xsa/advisory-157.html

All References (24)

→

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html

→

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html

→

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html

→

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html

→

http://www.debian.org/security/2016/dsa-3434

→

http://www.securityfocus.com/bid/79546Third Party Advisory · VDB Entry

→

http://www.securitytracker.com/id/1034480Third Party Advisory · VDB Entry

→

http://xenbits.xen.org/xsa/advisory-157.htmlVendor Advisory

→

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

→

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html

→

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html

→

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.htmlThird Party Advisory

Quick Facts

CVE IDCVE-2015-8552

CVSS Score4.4 / 10

SeverityMEDIUM

WeaknessCWE-20

CISA KEVNo

Affected4 vendor(s)

PublishedApr 13, 2016

Related CVEs (CWE-20)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2015-8552 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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