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CVE-2015-4164

Date: June 15, 2015

The compat_iret function in Xen 3.1 through 4.5 iterates the wrong way through a loop, which allows local 32-bit PV guest administrators to cause a denial of service (large loop and system hang) via a hypercall_iret call with EFLAGS.VM set.

Language: C

Severity Score

Related Resources (15)

http://www.debian.org/security/2015/dsa-3286
http://www.securityfocus.com/bid/75149
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
http://www.securitytracker.com/id/1032569
https://access.redhat.com/security/cve/CVE-2015-4164
https://nvd.nist.gov/vuln/detail/CVE-2015-4164
http://support.citrix.com/article/CTX201145
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00029.html
https://security.gentoo.org/glsa/201604-03
http://xenbits.xen.org/xsa/advisory-136.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
https://www.mend.io/vulnerability-database/CVE-2015-4164

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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