CVE-2014-8594
6.2 Medium
AI Score
Confidence
Low
5.4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:N/I:N/A:C
0.007 Low
EPSS
Percentile
79.7%
The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
References
lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
secunia.com/advisories/62672
www.debian.org/security/2015/dsa-3140
www.securityfocus.com/bid/71149
xenbits.xen.org/xsa/advisory-109.html
exchange.xforce.ibmcloud.com/vulnerabilities/98767
security.gentoo.org/glsa/201504-04
Related
6.2 Medium
AI Score
Confidence
Low
5.4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:H/Au:N/C:N/I:N/A:C
0.007 Low
EPSS
Percentile
79.7%