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.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-3286-1 xen security update
EUVD EUVD EUVD-2015-4188 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.
Fixes

Solution

No solution given by the vendor.


Workaround

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History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T06:04:02.939Z

Reserved: 2015-06-02T00:00:00

Link: CVE-2015-4164

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2015-06-15T15:59:13.367

Modified: 2025-04-12T10:46:40.837

Link: CVE-2015-4164

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-06-11T00:00:00Z

Links: CVE-2015-4164 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses