CVE-2017-7995

LOW

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.

References

http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00005.html

http://www.securityfocus.com/bid/98314

https://bugzilla.suse.com/show_bug.cgi?id=1033948

Details

Source: MITRE

Published: 2017-05-03

Updated: 2017-05-15

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 1.7

Vector: AV:L/AC:L/Au:S/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 3.1

Severity: LOW

CVSS v3.0

Base Score: 3.8

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

Impact Score: 1.4

Exploitability Score: 2

Severity: LOW