CVE-2017-12134

HIGH8.8

The xen_biovec_phys_mergeable function in drivers/xen/biomerge

Published Aug 24, 2017

Modified 1 years ago

Details

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

ADVISORYhttp://www.debian.org/security/2017/dsa-3981 WEBhttp://www.openwall.com/lists/oss-security/2017/08/15/4 WEBhttp://www.securityfocus.com/bid/100343 WEBhttp://www.securitytracker.com/id/1039176 WEBhttp://xenbits.xen.org/xsa/advisory-229.html WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=1477656 ADVISORYhttps://security.gentoo.org/glsa/201801-14 WEBhttps://support.citrix.com/article/CTX225941 ADVISORYhttps://usn.ubuntu.com/3655-1/ADVISORYhttps://usn.ubuntu.com/3655-2/ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2017-12134

CVSS Analysis

CVSS v3.0

8.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

ChangedS:C

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

8.8/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Ecosystems

Timeline

PublishedAug 24, 2017

ModifiedAug 5, 2024