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CVE-2017-7995

Date: May 3, 2017

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.

Severity Score

Related Resources (7)

https://access.redhat.com/security/cve/CVE-2017-7995
http://www.securityfocus.com/bid/98314
https://nvd.nist.gov/vuln/detail/CVE-2017-7995
http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00005.html
https://security-tracker.debian.org/tracker/CVE-2017-7995
https://bugzilla.suse.com/show_bug.cgi?id=1033948
https://www.mend.io/vulnerability-database/CVE-2017-7995

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

CVSS v3.1

Base Score:
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

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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