CVE-2017-12134
HIGHXen - Incorrect Block IO Merge Calculation Leading to Privilege Escalation
Title source: llmDescription
The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.
References (10)
Core 10
Core References
Patch, Third Party Advisory x_refsource_confirm
https://support.citrix.com/article/CTX225941
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1039176
Mitigation, Patch, Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-229.html
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2017/dsa-3981
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3655-1/
Issue Tracking, Mitigation, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1477656
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201801-14
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3655-2/
Mailing List, Mitigation, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2017/08/15/4
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/100343
Scores
CVSS v3
8.8
EPSS
0.0050
EPSS Percentile
38.5%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-682
Status
published
Products (7)
citrix/xenserver
6.0.2
citrix/xenserver
6.2.0
citrix/xenserver
6.5
citrix/xenserver
7.0
citrix/xenserver
7.1
citrix/xenserver
7.2
xen/xen
Published
Aug 24, 2017
Tracked Since
Feb 18, 2026