4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
8.1 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.7%
The acceleration support for the “REP MOVS” instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.
kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
rhn.redhat.com/errata/RHSA-2015-0783.html
secunia.com/advisories/59949
secunia.com/advisories/62672
support.citrix.com/article/CTX200288
support.citrix.com/article/CTX201794
www.debian.org/security/2015/dsa-3140
www.securityfocus.com/bid/71331
xenbits.xenproject.org/xsa/advisory-112.html
security.gentoo.org/glsa/201504-04