Improper Input Validation Affecting xen package, versions <4.1.4-3


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-DEBIAN11-XEN-527118
  • published13 May 2013
  • disclosed13 May 2013

Introduced: 13 May 2013

CVE-2013-1917  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:11 xen to version 4.1.4-3 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.

Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.

CVSS Scores

version 3.1