CVE-2017-17563
6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
6.8 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.7%
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.
Affected configurations
References
www.openwall.com/lists/oss-security/2017/12/12/2
www.securityfocus.com/bid/102169
www.securitytracker.com/id/1040769
lists.debian.org/debian-lts-announce/2018/01/msg00003.html
lists.debian.org/debian-lts-announce/2018/10/msg00009.html
security.gentoo.org/glsa/201801-14
support.citrix.com/article/CTX232096
www.debian.org/security/2018/dsa-4112
xenbits.xen.org/xsa/advisory-249.html
Related
6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
6.8 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.7%