Improper Input Validation Affecting xen package, versions <4.8.0-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.06% (28th percentile)

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  • Snyk IDSNYK-DEBIAN11-XEN-516564
  • published23 Jan 2017
  • disclosed23 Jan 2017

Introduced: 23 Jan 2017

CVE-2016-9380  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:11 xen to version 4.8.0-1 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 pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.