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CVE-2015-7970

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Date: October 30, 2015

The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a "time-consuming linear scan," related to Populate-on-Demand.

Language: C

Severity Score

Related Resources (13)

http://www.securitytracker.com/id/1034034
https://nvd.nist.gov/vuln/detail/CVE-2015-7970
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
https://security.gentoo.org/glsa/201604-03
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
http://www.debian.org/security/2015/dsa-3414
https://security-tracker.debian.org/tracker/CVE-2015-7970
http://www.securityfocus.com/bid/77362
http://support.citrix.com/article/CTX202404
http://xenbits.xen.org/xsa/advisory-150.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
https://www.mend.io/vulnerability-database/CVE-2015-7970

Severity Score

Weakness Type (CWE)

Resource Management Errors

CWE-399

CVSS v3.1

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

CVSS v2

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

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