Home/CVE/Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI devic
CVE

CVE-2017-7995

Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI devic

Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the get_user function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL.

LOW · CVSS 3.8 EPSS 0.00099
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules4 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
▤

Affected Products & Versions

6
xen<= 4.2.5
suse managerall versions
suse manager proxyall versions
suse openstack cloudall versions
novell suse linux enterprise point of saleall versions
novell suse linux enterprise serverall versions
◈

Sigma Hunt Rules

4
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPotential Malicious Usage of CloudTrail System Manager
producthighSuspicious Key Manager Access
producthighPotential Attachment Manager Settings Associations Tamper
producthighPotential Attachment Manager Settings Attachments Tamper
▣

Scoring & Timeline

3.8
LOW · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD03 May 2017 · 07:59 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
⚑

Vendor Advisories

1
suse-csafSUSE-SU-2017:1146-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00005.htmlThird Party Advisory
http://www.securityfocus.com/bid/98314Third Party AdvisoryVDB Entry
https://bugzilla.suse.com/show_bug.cgi?id=1033948Issue TrackingThird Party AdvisoryVDB Entry
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