Improper Input Validation Affecting xen package, versions <4.1.3-4


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.42% (34th percentile)

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  • Snyk IDSNYK-ECHOLATEST-XEN-18388536
  • published29 Jul 2026
  • disclosed31 Oct 2012

Introduced: 31 Oct 2012

CVE-2012-4544  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Echo:latest xen to version 4.1.3-4 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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk.

CVSS Base Scores

version 3.1