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Vulnerability record · CVE-2017-12136 · published 24 August 2017

CVE-2017-12136: Xen race condition vulnerability

Xen · Xen

Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.

7.8 CVSS 3.0 High EPSS 0.31% · top 78.5% CWE-362 · Race condition
7.8CVSS 3.0 base score, v2 6.9
0.31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
16References
17 Jun 2026Last modified by NVD

Description

Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2017/dsa-3969 Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/08/15/3 Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/100346 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039175 Third Party AdvisoryVDB Entry
http://xenbits.xen.org/xsa/advisory-228.html PatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1477651 Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/201801-14 Third Party Advisory
https://support.citrix.com/article/CTX225941 PatchThird Party Advisory
http://www.debian.org/security/2017/dsa-3969 Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/08/15/3 Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/100346 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039175 Third Party AdvisoryVDB Entry
http://xenbits.xen.org/xsa/advisory-228.html PatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1477651 Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/201801-14 Third Party Advisory
https://support.citrix.com/article/CTX225941 PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-12136), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.