Resource Management Errors Affecting xen package, versions <4.6.0-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-DEBIAN11-XEN-531352
  • published15 Jun 2015
  • disclosed15 Jun 2015

Introduced: 15 Jun 2015

CVE-2015-4164  (opens in a new tab)
CWE-399  (opens in a new tab)

How to fix?

Upgrade Debian:11 xen to version 4.6.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Scores

version 3.1