Vulnerability Details : CVE-2015-8550
Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend and backend, aka a double fetch vulnerability.
Vulnerability category: BypassGain privilegeDenial of service
Products affected by CVE-2015-8550
- cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12:sp1:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-8550
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 28 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-8550
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.7
|
MEDIUM | AV:L/AC:L/Au:S/C:P/I:P/A:C |
3.1
|
8.5
|
NIST | |
8.2
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
1.5
|
6.0
|
NIST |
CWE ids for CVE-2015-8550
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-8550
-
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
[security-announce] SUSE-SU-2016:0911-1: important: Security update for
-
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
[security-announce] SUSE-SU-2016:1764-1: important: Security update forThird Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
[security-announce] SUSE-SU-2016:1102-1: important: Security update for
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http://www.debian.org/security/2016/dsa-3471
Debian -- Security Information -- DSA-3471-1 qemu
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http://www.debian.org/security/2016/dsa-3434
Debian -- Security Information -- DSA-3434-1 linux
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http://xenbits.xen.org/xsa/advisory-155.html
XSA-155 - Xen Security AdvisoriesVendor Advisory
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https://security.gentoo.org/glsa/201604-03
Xen: Multiple vulnerabilities (GLSA 201604-03) — Gentoo security
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http://www.debian.org/security/2016/dsa-3519
Debian -- Security Information -- DSA-3519-1 xen
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http://www.securityfocus.com/bid/79592
Xen PV Backend Driver CVE-2015-8550 Remote Code Execution VulnerabilityThird Party Advisory;VDB Entry
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http://www.securitytracker.com/id/1034479
Xen PV Backend Drivers Memory Double-Fetch Lets Local Administrative Users on a Guest System Gain Elevated Privileges on the Host System - SecurityTrackerThird Party Advisory;VDB Entry
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http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
Oracle VM Server for x86 Bulletin - July 2016
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