CVE-2017-12134

Name: CVE-2017-12134
Creator: NVD / NIST
Published: 2017-08-24T14:29:00.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.50%

Last modified Jun 17, 2026

CVE-2017-12134 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.50%

38.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-682

Affected Software

Vendor	Product	Versions
Xen	Xen	All versions
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

References

http://www.debian.org/security/2017/dsa-3981
http://www.openwall.com/lists/oss-security/2017/08/15/4Mailing List, Mitigation, Third Party Advisory
http://www.securityfocus.com/bid/100343Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039176Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-229.htmlMitigation, Patch, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1477656Issue Tracking, Mitigation, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201801-14
https://support.citrix.com/article/CTX225941Patch, Third Party Advisory
https://usn.ubuntu.com/3655-1/
https://usn.ubuntu.com/3655-2/
http://www.debian.org/security/2017/dsa-3981
http://www.openwall.com/lists/oss-security/2017/08/15/4Mailing List, Mitigation, Third Party Advisory
http://www.securityfocus.com/bid/100343Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039176Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-229.htmlMitigation, Patch, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1477656Issue Tracking, Mitigation, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201801-14
https://support.citrix.com/article/CTX225941Patch, Third Party Advisory
https://usn.ubuntu.com/3655-1/
https://usn.ubuntu.com/3655-2/

Timeline

Published: Aug 24, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12134?

How severe is CVE-2017-12134?

Severity scoring for CVE-2017-12134 is pending analysis. The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12134?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12134?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST