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CVE-2017-12136

Date: August 24, 2017

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.

Language: C

Severity Score

Related Resources (10)

http://xenbits.xen.org/xsa/advisory-228.html
http://www.securityfocus.com/bid/100346
https://bugzilla.redhat.com/show_bug.cgi?id=1477651
http://www.openwall.com/lists/oss-security/2017/08/15/3
https://nvd.nist.gov/vuln/detail/CVE-2017-12136
http://www.debian.org/security/2017/dsa-3969
https://security.gentoo.org/glsa/201801-14
https://support.citrix.com/article/CTX225941
http://www.securitytracker.com/id/1039175
https://www.mend.io/vulnerability-database/CVE-2017-12136

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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