CVE-2017-7995
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.
Does this matter?
Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 3.8 LOWCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
- EPSS
- 0.37% probability · 30th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- xen/xen · suse/manager · suse/manager proxy · suse/openstack cloud · novell/suse linux enterprise point of sale · novell/suse linux enterprise server
- Source
- cve@mitre.org
EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00005.htmlThird Party Advisory
- http://www.securityfocus.com/bid/98314Third Party Advisory, VDB Entry
- https://bugzilla.suse.com/show_bug.cgi?id=1033948Issue Tracking, Third Party Advisory, VDB Entry
- http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00005.htmlThird Party Advisory
- http://www.securityfocus.com/bid/98314Third Party Advisory, VDB Entry
- https://bugzilla.suse.com/show_bug.cgi?id=1033948Issue Tracking, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.