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CVE-2015-4164

CVE-2015-4164

EPSS 0.4%
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.
Affected products
n/a · n/a

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References
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-06/msg00029.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-07/msg00014.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-09/msg00027.htmlhttps://security.gentoo.org/glsa/201604-03http://support.citrix.com/article/CTX201145http://www.debian.org/security/2015/dsa-3286http://www.securityfocus.com/bid/75149http://www.securitytracker.com/id/1032569http://xenbits.xen.org/xsa/advisory-136.html