Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2017-7995

Severity CVSS v4.0:
Pending analysis
Type:
CWE-200 Information Leak / Disclosure
Publication date:
03/05/2017
Last modified:
20/04/2025

Description

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.

Impact

Vector 3.x
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 3.80 LOW
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

Base Score 3.x
3.80
Severity 3.x
LOW
Vector 2.0
AV:L/AC:L/Au:S/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 1.70 LOW
Vector: AV:L/AC:L/Au:S/C:P/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
1.70
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* 4.2.5 (including)
cpe:2.3:a:suse:manager:2.1:*:*:*:*:*:*:*
cpe:2.3:a:suse:manager_proxy:2.1:*:*:*:*:*:*:*
cpe:2.3:a:suse:openstack_cloud:5:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_point_of_sale:11.0:sp3:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp3:*:*:ltss:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools